US Bridges

US 278 S-11LM9.47 over Moro Creek Relief

Fair

Calhoun County, Arkansas · 9.47 MI E JCT 167 North · Structure no. 0000000000A0786

Built
1954
71 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete
Length
125 ft
5 main spans
Daily traffic
1,100
2018 count
Owner
State
State Highway Agency

About this bridge

US 278 S-11LM9.47 over Moro Creek Relief is a concrete slab carrying US 278 S-11LM9.47 over Moro Creek Relief in Calhoun County, Arkansas. It was built in 1954, so it is 71 years old, older 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 1,100 vehicles a day, roughly 1% of them trucks, projected to reach 1,122 by 2028. The structure is 125 ft (38.1 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesUS 278 S-11LM9.47
CrossesMoro Creek Relief
Location9.47 MI E JCT 167 North
RouteU.S. Route 278
CountyCalhoun County
StateArkansas
Coordinates33.53843, -92.32674
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionAugust 2024
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 alignment7: Better than present minimum criteria
Operating rating48 US tons
Inventory rating29 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length125 ft (38.1 m)
Longest span25 ft (7.6 m)
Deck width30 ft (9.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2018)
Projected traffic1,122 by 2028
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 US 278 S-11LM9.47 over Moro Creek Relief built?

It was built in 1954, making it 71 years old in 2025.

What condition is US 278 S-11LM9.47 over Moro Creek Relief 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 August 2024.

How much traffic does US 278 S-11LM9.47 over Moro Creek Relief carry?

About 1,100 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is US 278 S-11LM9.47 over Moro Creek Relief?

The structure is 125 ft (38.1 m) long with a longest span of 25 ft (7.6 m) and a deck 30 ft wide.

Who owns US 278 S-11LM9.47 over Moro Creek Relief?

It is owned by the State Highway Agency.