US Bridges

LA Gonda Way over San Ramon Creek

Poor

Contra Costa County, California · At Danville Blvd · Structure no. 28C0335

Built
1950
75 years old
Condition
Poor
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
111 ft
3 main spans
Daily traffic
2,800
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

LA Gonda Way over San Ramon Creek is a steel stringer/multi-beam or girder carrying LA Gonda Way over San Ramon Creek in Contra Costa County, California. It was built in 1950, so it is 75 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 2,800 vehicles a day, roughly 1% of them trucks, projected to reach 10,977 by 2040. The structure is 111 ft (33.8 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLA Gonda Way
CrossesSan Ramon Creek
LocationAt Danville Blvd
RouteCity Street 0
Coordinates37.82555, -122.00364
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating77.5 US tons
Inventory rating46.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length111 ft (33.8 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.5 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2020)
Projected traffic10,977 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$478,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was LA Gonda Way over San Ramon Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is LA Gonda Way over San Ramon Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2023.

How much traffic does LA Gonda Way over San Ramon Creek carry?

About 2,800 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is LA Gonda Way over San Ramon Creek?

The structure is 111 ft (33.8 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns LA Gonda Way over San Ramon Creek?

It is owned by the City or Municipal Highway Agency.