US Bridges

Trimmer Springs RD over Fowler Switch Canal

Fair

Fresno County, California · Just South of Belmont Ave · Structure no. 42C0253

Built
1924
101 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete Continuous
Length
72 ft
4 main spans
Daily traffic
400
2010 count
Owner
County
County Highway Agency

About this bridge

Trimmer Springs RD over Fowler Switch Canal is a concrete continuous slab carrying Trimmer Springs RD over Fowler Switch Canal in Fresno County, California. It was built in 1924, so it is 101 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 400 vehicles a day, roughly 2% of them trucks, projected to reach 1,619 by 2042. The structure is 72 ft (22 m) long and 22 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesTrimmer Springs RD
CrossesFowler Switch Canal
LocationJust South of Belmont Ave
RouteCounty Highway 0
CountyFresno County
StateCalifornia
Coordinates36.75205, -119.46853
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47.5 US tons
Inventory rating28.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length72 ft (22 m)
Longest span18 ft (5.5 m)
Deck width22 ft (6.6 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2010)
Projected traffic1,619 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Fowler Switch Canal built?

It was built in 1924, making it 101 years old in 2025.

What condition is Trimmer Springs RD over Fowler Switch Canal 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 January 2024.

How much traffic does Trimmer Springs RD over Fowler Switch Canal carry?

About 400 vehicles per day (2010 count), of which roughly 2% are trucks.

How long is Trimmer Springs RD over Fowler Switch Canal?

The structure is 72 ft (22 m) long with a longest span of 18 ft (5.5 m) and a deck 22 ft wide.

Who owns Trimmer Springs RD over Fowler Switch Canal?

It is owned by the County Highway Agency.