US Bridges

SH 378 - Seb Co. over Little Petit Jean River

Fair

Sebastian County, Arkansas · 0.98 Mi. N Scott Co. Line · Structure no. 000000000006139

Built
1985
40 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete
Length
105 ft
3 main spans
Daily traffic
970
2018 count
Owner
State
State Highway Agency

About this bridge

SH 378 - Seb Co. over Little Petit Jean River is a concrete slab carrying SH 378 - Seb Co. over Little Petit Jean River in Sebastian County, Arkansas. It was built in 1985, so it is 40 years old, younger than the Arkansas average of 45.1 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 970 vehicles a day, roughly 4% of them trucks, projected to reach 1,581 by 2028. The structure is 105 ft (32 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSH 378 - Seb Co.
CrossesLittle Petit Jean River
Location0.98 Mi. N Scott Co. Line
RouteState Highway 378
CountySebastian County
StateArkansas
Coordinates35.03314, -94.23625
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 inspectionSeptember 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length105 ft (32 m)
Longest span35 ft (10.7 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic970 (2018)
Projected traffic1,581 by 2028
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SH 378 - Seb Co. over Little Petit Jean River built?

It was built in 1985, making it 40 years old in 2025.

What condition is SH 378 - Seb Co. over Little Petit Jean River 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 September 2023.

How much traffic does SH 378 - Seb Co. over Little Petit Jean River carry?

About 970 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is SH 378 - Seb Co. over Little Petit Jean River?

The structure is 105 ft (32 m) long with a longest span of 35 ft (10.7 m) and a deck 33 ft wide.

Who owns SH 378 - Seb Co. over Little Petit Jean River?

It is owned by the State Highway Agency.