US Bridges

5 1/2 Ave over Cole Slough

Fair

Kings County, California · 0.5 MI S of Boston Ave · Structure no. 45C0027

Built
1962
63 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete Continuous
Length
272 ft
9 main spans
Daily traffic
2,587
2017 count
Owner
County
County Highway Agency

About this bridge

5 1/2 Ave over Cole Slough is a concrete continuous slab carrying 5 1/2 Ave over Cole Slough in Kings County, California. It was built in 1962, so it is 63 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 2,587 vehicles a day, roughly 15% of them trucks, projected to reach 2,173 by 2045. The structure is 272 ft (82.9 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries5 1/2 Ave
CrossesCole Slough
Location0.5 MI S of Boston Ave
RouteCounty Highway 0
CountyKings County
StateCalifornia
Coordinates36.48422, -119.55719
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating38.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadH 20
Structure length272 ft (82.9 m)
Longest span30 ft (9.1 m)
Deck width33 ft (10 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,587 (2017)
Projected traffic2,173 by 2045
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 5 1/2 Ave over Cole Slough built?

It was built in 1962, making it 63 years old in 2025.

What condition is 5 1/2 Ave over Cole Slough 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 November 2023.

How much traffic does 5 1/2 Ave over Cole Slough carry?

About 2,587 vehicles per day (2017 count), of which roughly 15% are trucks.

How long is 5 1/2 Ave over Cole Slough?

The structure is 272 ft (82.9 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.

Who owns 5 1/2 Ave over Cole Slough?

It is owned by the County Highway Agency.