US Bridges

W Mt Whitney Ave over Fresno Slough Overflow

Good

Fresno County, California · 0.5 MI E of Dickenson Ave · Structure no. 42C0056

Built
1955
70 years old, rebuilt 1996
Condition
Good
inspected January 2024
Type
Slab
Concrete Continuous
Length
113 ft
5 main spans
Daily traffic
2,700
2007 count
Owner
County
County Highway Agency

About this bridge

W Mt Whitney Ave over Fresno Slough Overflow is a concrete continuous slab carrying W Mt Whitney Ave over Fresno Slough Overflow in Fresno County, California. It was built in 1955 and reconstructed in 1996, so it is 70 years old, older 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 2,700 vehicles a day, roughly 26% of them trucks, projected to reach 4,616 by 2042. The structure is 113 ft (34.4 m) long and 38 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesW Mt Whitney Ave
CrossesFresno Slough Overflow
Location0.5 MI E of Dickenson Ave
RouteCounty Highway 0
Coordinates36.43007, -119.96845
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.9 US tons
Inventory rating33.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length113 ft (34.4 m)
Longest span22 ft (6.7 m)
Deck width38 ft (11.7 m)
Roadway width35 ft (10.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2007)
Projected traffic4,616 by 2042
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 W Mt Whitney Ave over Fresno Slough Overflow built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1996.

What condition is W Mt Whitney Ave over Fresno Slough Overflow 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 January 2024.

How much traffic does W Mt Whitney Ave over Fresno Slough Overflow carry?

About 2,700 vehicles per day (2007 count), of which roughly 26% are trucks.

How long is W Mt Whitney Ave over Fresno Slough Overflow?

The structure is 113 ft (34.4 m) long with a longest span of 22 ft (6.7 m) and a deck 38 ft wide.

Who owns W Mt Whitney Ave over Fresno Slough Overflow?

It is owned by the County Highway Agency.