Structure 37 0176 · Santa Clara County, CA

Interstate 880 over Guadalupe River

Carries Interstate 880 over Guadalupe River, 04-scl-880-3.15-sjs.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT205 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 7/9Substructure 7/9

205 ft end to end, longest span 103 ft: about 3 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built1960rebuilt 1963
Length205.1 ft62.5 m
Daily traffic165,000counted 2019
Last inspectedMarch 2023every 24 months

Location

StateCalifornia
CountySanta Clara
Location04-scl-880-3.15-sjs
CarriesInterstate 880
CrossesGuadalupe River
Coordinates37.35337, -121.91197

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length205.1 ft (62.5 m)
Max Span103.0 ft (31.4 m)
Deck Width115.2 ft (35.1 m)
Deck Area2193.8 sq m
Main Spans2
Year Built1960 (reconstructed 1963)

Traffic

Avg Daily Traffic165,000 (2019)
Truck Traffic10%
Lanes On Bridge6

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number37 0176

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

Nearby Bridges