US Bridges

Eagle Field Road over San Luis Canal

Fair

Merced County, California · 0.25 MI E Pole Line Road · Structure no. 39C0242

Built
1968
57 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
232 ft
4 main spans
Daily traffic
200
2017 count
Owner
Federal
Bureau of Reclamation

About this bridge

Eagle Field Road over San Luis Canal is a prestressed concrete stringer/multi-beam or girder carrying Eagle Field Road over San Luis Canal in Merced County, California. It was built in 1968, so it is 57 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 6 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 200 vehicles a day, roughly 10% of them trucks, projected to reach 230 by 2037. The structure is 232 ft (70.7 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesEagle Field Road
CrossesSan Luis Canal
Location0.25 MI E Pole Line Road
RouteCounty Highway 0
CountyMerced County
StateCalifornia
Coordinates36.8938, -120.7941
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating80.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length232 ft (70.7 m)
Longest span55 ft (16.8 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2017)
Projected traffic230 by 2037
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Reclamation
Maintained byOther State 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 Eagle Field Road over San Luis Canal built?

It was built in 1968, making it 57 years old in 2025.

What condition is Eagle Field Road over San Luis 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 June 2024.

How much traffic does Eagle Field Road over San Luis Canal carry?

About 200 vehicles per day (2017 count), of which roughly 10% are trucks.

How long is Eagle Field Road over San Luis Canal?

The structure is 232 ft (70.7 m) long with a longest span of 55 ft (16.8 m) and a deck 28 ft wide.

Who owns Eagle Field Road over San Luis Canal?

It is owned by the Bureau of Reclamation and maintained by the Other State Agency.