US Bridges

ST RTE 98 Bowker over All American Canal

Fair

Imperial County, California · 11-IMP-098-34.43 · Structure no. 58 0260

Built
1938
87 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
37 ft
2 main spans
Daily traffic
15,343
2018 count
Owner
State
State Highway Agency

About this bridge

ST RTE 98 Bowker over All American Canal is a concrete culvert carrying ST RTE 98 Bowker over All American Canal in Imperial County, California. It was built in 1938, so it is 87 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 15,343 vehicles a day, roughly 11% of them trucks, projected to reach 35,549 by 2041. The structure is 37 ft (11.2 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesST RTE 98 Bowker
CrossesAll American Canal
Location11-IMP-098-34.43
RouteState Highway 98
CountyImperial County
StateCalifornia
Coordinates32.6864, -115.46525
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: 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 rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length37 ft (11.2 m)
Longest span18 ft (5.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,343 (2018)
Projected traffic35,549 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was ST RTE 98 Bowker over All American Canal built?

It was built in 1938, making it 87 years old in 2025.

What condition is ST RTE 98 Bowker over All American 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 October 2024.

How much traffic does ST RTE 98 Bowker over All American Canal carry?

About 15,343 vehicles per day (2018 count), of which roughly 11% are trucks.

How long is ST RTE 98 Bowker over All American Canal?

The structure is 37 ft (11.2 m) long with a longest span of 18 ft (5.6 m).

Who owns ST RTE 98 Bowker over All American Canal?

It is owned by the State Highway Agency.