US Bridges

Oconnor DR over Forest Ave

Fair

Santa Clara County, California · Forrest Ave · Structure no. 37C0302

Built
1960
65 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
72 ft
1 main span
Daily traffic
1,500
1977 count
Owner
City
City or Municipal Highway Agency

About this bridge

Oconnor DR over Forest Ave is a concrete box beam or girders - multiple carrying Oconnor DR over Forest Ave in Santa Clara County, California. It was built in 1960, so it is 65 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,500 vehicles a day, roughly 1% of them trucks, projected to reach 6,121 by 2042. The structure is 72 ft (21.9 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesOconnor DR
CrossesForest Ave
LocationForrest Ave
RouteCity Street 0
CountySanta Clara County
StateCalifornia
Coordinates37.32711, -121.94009
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating35.1 US tons
Inventory rating26.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length72 ft (21.9 m)
Longest span70 ft (21.3 m)
Deck width42 ft (12.7 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (1977)
Projected traffic6,121 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Oconnor DR over Forest Ave built?

It was built in 1960, making it 65 years old in 2025.

What condition is Oconnor DR over Forest Ave in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.

How much traffic does Oconnor DR over Forest Ave carry?

About 1,500 vehicles per day (1977 count), of which roughly 1% are trucks.

How long is Oconnor DR over Forest Ave?

The structure is 72 ft (21.9 m) long with a longest span of 70 ft (21.3 m) and a deck 42 ft wide.

Who owns Oconnor DR over Forest Ave?

It is owned by the City or Municipal Highway Agency.