US Bridges

Arch Airport Road over French Camp Slough

Fair

San Joaquin County, California · 0.34 MI East of Route 5 · Structure no. 29C0452

Built
2013
12 years old
Condition
Fair
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
154 ft
1 main span
Daily traffic
20,818
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

Arch Airport Road over French Camp Slough is a prestressed concrete box beam or girders - multiple carrying Arch Airport Road over French Camp Slough in San Joaquin County, California. It was built in 2013, so it is 12 years old, younger 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 20,818 vehicles a day, roughly 18% of them trucks, projected to reach 31,326 by 2045. The structure is 154 ft (46.9 m) long and 135 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesArch Airport Road
CrossesFrench Camp Slough
Location0.34 MI East of Route 5
RouteCity Street 0
CountySan Joaquin County
StateCalifornia
Coordinates37.89547, -121.27796
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
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
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
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length154 ft (46.9 m)
Longest span154 ft (46.9 m)
Deck width135 ft (41 m)
Roadway width109 ft (33.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,818 (2015)
Projected traffic31,326 by 2045
Trucks18%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Arch Airport Road over French Camp Slough built?

It was built in 2013, making it 12 years old in 2025.

What condition is Arch Airport Road over French Camp 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 February 2025.

How much traffic does Arch Airport Road over French Camp Slough carry?

About 20,818 vehicles per day (2015 count), of which roughly 18% are trucks.

How long is Arch Airport Road over French Camp Slough?

The structure is 154 ft (46.9 m) long with a longest span of 154 ft (46.9 m) and a deck 135 ft wide.

Who owns Arch Airport Road over French Camp Slough?

It is owned by the City or Municipal Highway Agency.