US Bridges

Trimmer Springs RD over Overflow Channel

Good

Fresno County, California · 1.4 MI East of Belmont Av · Structure no. 42C0614

Built
1999
26 years old
Condition
Good
inspected February 2025
Type
Arch - Deck
Concrete
Length
66 ft
2 main spans
Daily traffic
1,800
2010 count
Owner
County
County Highway Agency

About this bridge

Trimmer Springs RD over Overflow Channel is a concrete arch - deck carrying Trimmer Springs RD over Overflow Channel in Fresno County, California. It was built in 1999, so it is 26 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,800 vehicles a day, roughly 5% of them trucks, projected to reach 4,520 by 2047. The structure is 66 ft (20.2 m) long and 36 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesTrimmer Springs RD
CrossesOverflow Channel
Location1.4 MI East of Belmont Av
RouteCounty Highway 0
Coordinates36.76488, -119.4462
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length66 ft (20.2 m)
Longest span32 ft (9.8 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,800 (2010)
Projected traffic4,520 by 2047
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Trimmer Springs RD over Overflow Channel built?

It was built in 1999, making it 26 years old in 2025.

What condition is Trimmer Springs RD over Overflow Channel in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2025.

How much traffic does Trimmer Springs RD over Overflow Channel carry?

About 1,800 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Trimmer Springs RD over Overflow Channel?

The structure is 66 ft (20.2 m) long with a longest span of 32 ft (9.8 m) and a deck 36 ft wide.

Who owns Trimmer Springs RD over Overflow Channel?

It is owned by the County Highway Agency.