For flimsy bridge fetishists -- those sick, twisted daredevils who thrill at the idea of crossing a bridge in dire need of repair -- the ongoing Bay Bridge closure needn't be a killjoy.
Rather, it serves as a reminder that there are plenty of other local spans whose inspection rating is in the same "structurally deficient" range as the Interstate 35W bridge that two years ago sent 20 Minnesota commuters plunging into the Mississippi.
Structurally deficient means a bridge should eventually be replaced, but is safe for travel. San Francisco, a city crisscrossed with aging viaducts, is a veritable amusement park for thrill- seekers. For those in need of post-weekend adrenaline rushes, we provide a news-you-can-use list, gleaned from this database:
By the way, I hereby offer a special prize of 12 -- that's right, 12 -- indie CDs to the first SF Weekly reader who coughs up the cross streets to all the San Francisco bridges with a so-called "Sufficiency Rating" of 50 or lower. Sufficiency Rating is a 0-to-100 bridge safety scale. Bridges scoring 50 or lower are eligible for replacement. Send entries here.
Route: I-80
Place: San Francisco
Facility Carried: INTERSTATE 80
Feature Intersected: SAN FRANCISCO BAY, 3 STS
Location: 04-SF-080-6.35-SF
Bridge Material and Design: Steel Suspension
Sufficiency Rating: 46.3 %
Structural Evaluation: Somewhat better than minimum adequacy to tolerate being left in place as is
Structure Length: 6281.3 meters
Year Built: 1936
Year Reconstructed: 1962
NBI Structure Number: ++++++34+0003
This bridge is Structurally Deficient
Route: U.S. 101
Place: San Francisco
Facility Carried: U.S. HIGHWAY 101
Feature Intersected: CENTRAL VIADUCT
Location: 04-SF-101-R4.25-SF
Bridge Material and Design: Steel Stringer/Multi-beam or Girder
Sufficiency Rating: 52.8 %
Structural Evaluation: Somewhat better than minimum adequacy to tolerate being left in place as is
Structure Length: 3064.7 meters
Year Built: 1955
NBI Structure Number: ++++++34+0077
This bridge is Structurally Deficient
Route: U.S. 101
Place: San Francisco
Facility Carried: ST RTE 101 (5TH ST
Feature Intersected: BAYSHORE VIADUCT
Location: 04-SF-101-4.12-SF
Bridge Material and Design: Steel Stringer/Multi-beam or Girder
Sufficiency Rating: 49 %
Structural Evaluation: Somewhat better than minimum adequacy to tolerate being left in place as is
Structure Length: 2286.6 meters
Year Built: 1955
NBI Structure Number: ++++++34+0088
This bridge is Structurally Deficient
Route: U.S. 101
Place: San Francisco
Facility Carried: U.S. HIGHWAY 101
Feature Intersected: MARSHALL, HALLECK.....
Location: 04-SF-101-8.33-SF
Bridge Material and Design: Steel Stringer/Multi-beam or Girder
Sufficiency Rating: 24.8 %
Structural Evaluation: Meets minimum tolerable limits to be left in place as is
Structure Length: 1394.5 meters
Year Built: 1936
NBI Structure Number: ++++++34+0014
This bridge is Structurally Deficient
Route: I-80
Place: San Francisco
Facility Carried: TRNSBY TRNST TRMNL
Feature Intersected: FOLSOM,1ST,FREMONT,BEALE
Location: 04-SF-080-5.46-SF
Bridge Material and Design: Steel Stringer/Multi-beam or Girder
Sufficiency Rating: 72 %
Structural Evaluation: Equal to present minimum criteria
Structure Length: 1048.2 meters
Year Built: 1937
NBI Structure Number: ++++++34+0119Y
This bridge is Structurally Deficient
Route: U.S. 101
Place: San Francisco
Facility Carried: 280N - 101S (WU)
Feature Intersected: 280/101 INTERCHANGE
Location: 04-SF-101-1.79-SF
Bridge Material and Design: Concrete continuous Box Beam or Girders - Multiple
Sufficiency Rating: 62 %
Structural Evaluation: Somewhat better than minimum adequacy to tolerate being left in place as is
Structure Length: 607.5 meters
Year Built: 1960
NBI Structure Number: ++++++34+0136G
This bridge is Structurally Deficient
Route: I-280
Place: San Francisco
Facility Carried: I 280N-101N (RE)
Feature Intersected: 101/280 INTERCHANGE
Location: 04-SF-280-R4.16-SF
Bridge Material and Design: Concrete continuous Box Beam or Girders - Multiple
Sufficiency Rating: 73 %
Structural Evaluation: Better than present minimum criteria
Structure Length: 565.7 meters
Year Built: 1960
NBI Structure Number: ++++++34+0134G
This bridge is Structurally Deficient
Route: I-80
Place: San Francisco
Facility Carried: W80-FREMONT OFFRMP
Feature Intersected: HARRISON, FOLSOM, & 1ST
Location: 04-SF-080-5.51-SF
Bridge Material and Design: Concrete continuous Tee Beam
Sufficiency Rating: 60.4 %
Structural Evaluation: Somewhat better than minimum adequacy to tolerate being left in place as is
Structure Length: 561.7 meters
Year Built: 1935
Year Reconstructed: 1961
NBI Structure Number: ++++++34+0116F
This bridge is Structurally Deficient
Route: U.S. 101
Place: San Francisco
Facility Carried: 101 AND 280
Feature Intersected: 280/101 INTERCHANGE
Location: 04-SF-101-1.63-SF
Bridge Material and Design: Concrete continuous Box Beam or Girders - Multiple
Sufficiency Rating: 52 %
Structural Evaluation: Better than present minimum criteria
Structure Length: 498 meters
Year Built: 1960
NBI Structure Number: ++++++34+0070
This bridge is Structurally Deficient
Route: U.S. 101
Place: San Francisco
Facility Carried: US101N-I 280S (WL)
Feature Intersected: 101/280 INTERCHANGE
Location: 04-SF-101-1.79-SF
Bridge Material and Design: Concrete continuous Box Beam or Girders - Multiple
Sufficiency Rating: 73 %
Structural Evaluation: Equal to present minimum criteria
Structure Length: 481.4 meters
Year Built: 1960
NBI Structure Number: ++++++34+0135G
This bridge is Structurally Deficient
Route: U.S. 101
Place: San Francisco
Facility Carried: U.S. HIGHWAY 101
Feature Intersected: N1-N101, LINCOLN, CRISSY
Location: 04-SF-101-9.14-SF
Bridge Material and Design: Steel Truss - Deck
Sufficiency Rating: 2 %
Structural Evaluation: Bridge closed
Structure Length: 463.6 meters
Year Built: 1936
Year Reconstructed: 1939
NBI Structure Number: ++++++34+0019
This bridge is Structurally Deficient
Route: I-280
Place: San Francisco
Facility Carried: I 280 S, AU LINE
Feature Intersected: 101/280 INTERCHANGE
Location: 04-SF-280-R4.18-SF
Bridge Material and Design: Concrete continuous Box Beam or Girders - Multiple
Sufficiency Rating: 69 %
Structural Evaluation: Equal to present minimum criteria
Structure Length: 352 meters
Year Built: 1960
Year Reconstructed: 1966
NBI Structure Number: ++++++34+0131L
This bridge is Structurally Deficient
Route: I-280
Place: San Francisco
Facility Carried: S280-S101 CONNECTR
Feature Intersected: N101-N280 CONNECTOR RAMP
Location: 04-SF-280-R4.07-SF
Bridge Material and Design: Concrete continuous Box Beam or Girders - Multiple
Sufficiency Rating: 77.8 %
Structural Evaluation: Better than present minimum criteria
Structure Length: 351.7 meters
Year Built: 1966
NBI Structure Number: ++++++34+0070E
This bridge is Structurally Deficient
Route: I-280
Place: San Francisco
Facility Carried: I 280 N, AL LINE
Feature Intersected: 101/280 INTERCHANGE
Location: 04-SF-280-R4.16-SF
Bridge Material and Design: Concrete continuous Box Beam or Girders - Multiple
Sufficiency Rating: 66 %
Structural Evaluation: Better than present minimum criteria
Structure Length: 347.5 meters
Year Built: 1960
Year Reconstructed: 1966
NBI Structure Number: ++++++34+0132R
This bridge is Structurally Deficient
Route: I-80
Place: San Francisco
Facility Carried: W80-FREMONT ST OFF
Feature Intersected: STERLING-E80,BRYANT,RNCN
Location: 04-SF-080-5.45-SF
Bridge Material and Design: Concrete continuous Tee Beam
Sufficiency Rating: 56.8 %
Structural Evaluation: Meets minimum tolerable limits to be left in place as is
Structure Length: 315.5 meters
Year Built: 1935
Year Reconstructed: 1961
NBI Structure Number: ++++++34+0117S
This bridge is Structurally Deficient
Route: U.S. 101
Place: San Francisco
Facility Carried: I 280 - 101S (WU)
Feature Intersected: 280/101 INTERCHANGE
Location: 04-SF-101-1.48-SF
Bridge Material and Design: Concrete continuous Box Beam or Girders - Multiple
Sufficiency Rating: 62 %
Structural Evaluation: Somewhat better than minimum adequacy to tolerate being left in place as is
Structure Length: 274.9 meters
Year Built: 1960
NBI Structure Number: ++++++34+0070H
This bridge is Structurally Deficient
Route: 1
Place: San Francisco
Facility Carried: STATE ROUTE 1
Feature Intersected: KOBBE AVE
Location: 04-SF-001-6.67-SF
Bridge Material and Design: Concrete continuous Tee Beam
Sufficiency Rating: 58.3 %
Structural Evaluation: Equal to present minimum criteria
Structure Length: 215.8 meters
Year Built: 1939
NBI Structure Number: ++++++34+0017
This bridge is Structurally Deficient
Route: U.S. 101
Place: San Francisco
Facility Carried: U.S. HIGHWAY 101
Feature Intersected: CESAR CHAVEZ BLVD
Location: 04-SF-101-2.92-SF
Bridge Material and Design: Steel Stringer/Multi-beam or Girder
Sufficiency Rating: 91 %
Structural Evaluation: Equal to present minimum criteria
Structure Length: 190.5 meters
Year Built: 1951
Year Reconstructed: 1968
NBI Structure Number: ++++++34+0034
This bridge is Structurally Deficient
Route: I-280
Place: San Francisco
Facility Carried: I280S OFF-MONTEREY
Feature Intersected: I 280,SAN JOSE,MUNI,BART
Location: 04-SF-280-R2.72-SF
Bridge Material and Design: Concrete continuous Box Beam or Girders - Multiple
Sufficiency Rating: 87.8 %
Structural Evaluation: Better than present minimum criteria
Structure Length: 169.8 meters
Year Built: 1964
NBI Structure Number: ++++++34+0079K
This bridge is Structurally Deficient
Route: I-280
Place: San Francisco
Facility Carried: I 280N (RE, AL)
Feature Intersected: 101/280 INTERCHANGE
Location: 04-SF-280-R4.07-SF
Bridge Material and Design: Concrete continuous Box Beam or Girders - Multiple
Sufficiency Rating: 77 %
Structural Evaluation: Equal to present minimum criteria
Structure Length: 150.6 meters
Year Built: 1960
NBI Structure Number: ++++++34+0133R
This bridge is Structurally Deficient
Route: D008
Place: San Francisco
Facility Carried: BAYSHORE BLVD
Feature Intersected: ROUTE 101
Location: 04-SF-101-.56-SF
Bridge Material and Design: Steel Stringer/Multi-beam or Girder
Sufficiency Rating: 61 %
Structural Evaluation: Somewhat better than minimum adequacy to tolerate being left in place as is
Structure Length: 148.7 meters
Year Built: 1970
NBI Structure Number: ++++++34+0103
This bridge is Structurally Deficient
Route: 1
Place: San Francisco
Facility Carried: STATE ROUTE 1
Feature Intersected: STOREY AVE
Location: 04-SF-001-6.86-SF
Bridge Material and Design: Concrete continuous Tee Beam
Sufficiency Rating: 31.3 %
Structural Evaluation: Meets minimum tolerable limits to be left in place as is
Structure Length: 135.6 meters
Year Built: 1939
NBI Structure Number: ++++++34+0018
This bridge is Structurally Deficient
Route: U.S. 101
Place: San Francisco
Facility Carried: SB ROUTE 101 ONRMP
Feature Intersected: ALEMANY CIR
Location: 04-SF-101-2-SF
Bridge Material and Design: Steel Stringer/Multi-beam or Girder
Sufficiency Rating: 84.3 %
Structural Evaluation: Better than present minimum criteria
Structure Length: 118.9 meters
Year Built: 1954
NBI Structure Number: ++++++34+0064K
This bridge is Structurally Deficient
Route: U.S. 101
Place: San Francisco
Facility Carried: ROUTE 101
Feature Intersected: ALEMANY CIR UC (NBD O-R)
Location: 04-SF-101-2.2-SF
Bridge Material and Design: Steel Stringer/Multi-beam or Girder
Sufficiency Rating: 84.3 %
Structural Evaluation: Equal to present minimum criteria
Structure Length: 100.9 meters
Year Built: 1950
NBI Structure Number: ++++++34+0063S
This bridge is Structurally Deficient
Route: D016
Place: San Francisco
Facility Carried: THIRD ST
Feature Intersected: CHINA BASIN
Location: S OF BERRY ST
Bridge Material and Design: Steel Movable - Bascule
Sufficiency Rating: 30.7 %
Structural Evaluation: Basically intolerable requiring high priority of corrective action
Structure Length: 89.9 meters
Year Built: 1932
NBI Structure Number: ++++++34C0025
This bridge is Structurally Deficient
Route: U.S. 101
Place: San Francisco
Facility Carried: U.S. HIGHWAY 101
Feature Intersected: 3RD STREET
Location: 04-SF-101-.77-SF
Bridge Material and Design: Concrete continuous Box Beam or Girders - Multiple
Sufficiency Rating: 61 %
Structural Evaluation: Somewhat better than minimum adequacy to tolerate being left in place as is
Structure Length: 82.3 meters
Year Built: 1954
Year Reconstructed: 1970
NBI Structure Number: ++++++34+0030
This bridge is Structurally Deficient
Route: 1
Place: San Francisco
Facility Carried: RAMP/CONNECTOR 1
Feature Intersected: LINCOLN BLVD
Location: 04-SF-001-6.97-SF
Bridge Material and Design: Concrete continuous Tee Beam
Sufficiency Rating: 83.6 %
Structural Evaluation: Better than present minimum criteria
Structure Length: 72.5 meters
Year Built: 1939
NBI Structure Number: ++++++34+0040G
This bridge is Structurally Deficient
Place: San Francisco
Facility Carried: RICHLAND AVE
Feature Intersected: SAN JOSE AVE
Location: 04-SF-000-0-SF
Bridge Material and Design: Concrete continuous Tee Beam
Sufficiency Rating: 78.7 %
Structural Evaluation: Better than present minimum criteria
Structure Length: 71.6 meters
Year Built: 1927
Year Reconstructed: 1969
NBI Structure Number: ++++++34C0015
This bridge is Structurally Deficient
Route: D010
Place: San Francisco
Facility Carried: MISSION STREET
Feature Intersected: ROUTE I 280
Location: 04-SF-280-R3.11-SF
Bridge Material and Design: Concrete continuous Box Beam or Girders - Multiple
Sufficiency Rating: 84.2 %
Structural Evaluation: Equal to present minimum criteria
Structure Length: 71.6 meters
Year Built: 1963
NBI Structure Number: ++++++34+0012
This bridge is Structurally Deficient
Route: I-280
Place: San Francisco
Facility Carried: SANJOSE-I280 RAMPS
Feature Intersected: BOSWORTH STREET
Location: 04-SF-280-R2.9-SF
Bridge Material and Design: Concrete continuous Box Beam or Girders - Multiple
Sufficiency Rating: 89.8 %
Structural Evaluation: Better than present minimum criteria
Structure Length: 63.4 meters
Year Built: 1964
NBI Structure Number: ++++++34+0092Y
This bridge is Structurally Deficient
Route: D182
Place: San Francisco
Facility Carried: HARRISON STREET
Feature Intersected: BEALE STREET
Location: 04-SF-182-0-SF
Bridge Material and Design: Concrete continuous Tee Beam
Sufficiency Rating: 88.5 %
Structural Evaluation: Better than present minimum criteria
Structure Length: 55.2 meters
Year Built: 1936
NBI Structure Number: ++++++34C0057
This bridge is Structurally Deficient
Route: I-280
Place: San Francisco
Facility Carried: NB AND SB RTE 280
Feature Intersected: LYELL STREET
Location: 04-SF-280-R2.89-SF
Bridge Material and Design: Concrete continuous Box Beam or Girders - Multiple
Sufficiency Rating: 80 %
Structural Evaluation: Better than present minimum criteria
Structure Length: 54.9 meters
Year Built: 1964
Year Reconstructed: 1972
NBI Structure Number: ++++++34+0089
This bridge is Structurally Deficient
Route: U.S. 101
Place: San Francisco
Facility Carried: U.S. HIGHWAY 101
Feature Intersected: PAUL AVE
Location: 04-SF-101-1.11-SF
Bridge Material and Design: Concrete continuous Box Beam or Girders - Multiple
Sufficiency Rating: 73 %
Structural Evaluation: Better than present minimum criteria
Structure Length: 49.1 meters
Year Built: 1954
Year Reconstructed: 1970
NBI Structure Number: ++++++34+0056
This bridge is Structurally Deficient
Route: D038
Place: San Francisco
Facility Carried: SILVER AVE
Feature Intersected: ROUTE 101
Location: 04-SF-101-1.77-SF
Bridge Material and Design: Concrete continuous Box Beam or Girders - Multiple
Sufficiency Rating: 78.4 %
Structural Evaluation: Somewhat better than minimum adequacy to tolerate being left in place as is
Structure Length: 48.2 meters
Year Built: 1954
NBI Structure Number: ++++++34+0032
This bridge is Structurally Deficient
Route: U.S. 101
Place: San Francisco
Facility Carried: N101 CEASER OFFRMP
Feature Intersected: SB101 BAYSHORE OFF-RAMP
Location: 04-SF-101-2.84-SF
Bridge Material and Design: Concrete continuous Tee Beam
Sufficiency Rating: 66.3 %
Structural Evaluation: Equal to present minimum criteria
Structure Length: 47.9 meters
Year Built: 1950
NBI Structure Number: ++++++34+0047S
This bridge is Structurally Deficient
Route: D009
Place: San Francisco
Facility Carried: GENEVA AVE
Feature Intersected: ROUTE I 280
Location: 04-SF-280-R1.65-SF
Bridge Material and Design: Concrete continuous Box Beam or Girders - Multiple
Sufficiency Rating: 76.8 %
Structural Evaluation: Somewhat better than minimum adequacy to tolerate being left in place as is
Structure Length: 46.3 meters
Year Built: 1964
NBI Structure Number: ++++++34+0095
This bridge is Structurally Deficient
Route: 1
Place: San Francisco
Facility Carried: ROUTE 1
Feature Intersected: WEST PACIFIC AVE
Location: 04-SF-001-6.18-SF
Bridge Material and Design: Concrete continuous Tee Beam
Sufficiency Rating: 47 %
Structural Evaluation: Somewhat better than minimum adequacy to tolerate being left in place as is
Structure Length: 42.1 meters
Year Built: 1939
NBI Structure Number: ++++++34+0015
This bridge is Structurally Deficient
Route: U.S. 101
Place: San Francisco
Facility Carried: ROUTE 101
Feature Intersected: 3RD STREET
Location: 04-SF-101-.77-SF
Bridge Material and Design: Concrete continuous Box Beam or Girders - Multiple
Sufficiency Rating: 57.2 %
Structural Evaluation: Better than present minimum criteria
Structure Length: 39.3 meters
Year Built: 1955
NBI Structure Number: ++++++34+0030S
This bridge is Structurally Deficient
