N680-diablo RD Off over San Ramon Creek

Good Condition51 years old4,650 vehicles/day

Location

StateCalifornia
CountyContra Costa
Location04-cc-680-r7.35-dnvl
CarriesN680-diablo RD Off
CrossesSan Ramon Creek
Coordinates37.81984, -121.99295

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length558.1 ft (170.1 m)
Max Span100.1 ft (30.5 m)
Deck Width25.9 ft (7.9 m)
Deck Area1343.8 sq m
Main Spans7
Year Built1975

Traffic

Avg Daily Traffic4,650 (1998)
Truck Traffic6%
Lanes On Bridge1

Inspection & Ownership

Last Inspection724
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number28 0197S

Nearby Bridges

Interstate 680 over San Ramon Creek 0.1 mi Fair Diablo Rd-s680 On over San Ramon Creek 0.1 mi Good Interstate 680 over Diablo Road 0.2 mi Fair Interstate 680 over Green Valley Creek 0.3 mi Good Interstate 680 over Laurel Drive 0.4 mi Poor Diablo Road over San Ramon Creek 0.4 mi Fair West El Pintado RD over Green Valley Creek 0.4 mi Good Diablo RD over Green Valley Creek 0.6 mi Fair Sycamore Valley RD over Interstate 680 0.6 mi Good La Gonda Way over San Ramon Creek 0.7 mi Poor