US Bridges

US 412-06B-LM 3.11 over Coon Creek

Fair

Lawrence County, Arkansas · 3.11 MI E US 63 · Structure no. 000000000005727

Built
1978
47 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete
Length
99 ft
3 main spans
Daily traffic
3,900
2018 count
Owner
State
State Highway Agency

About this bridge

US 412-06B-LM 3.11 over Coon Creek is a concrete slab carrying US 412-06B-LM 3.11 over Coon Creek in Lawrence County, Arkansas. It was built in 1978, so it is 47 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 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 3,900 vehicles a day, roughly 1% of them trucks, projected to reach 4,373 by 2028. The structure is 99 ft (30.2 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesUS 412-06B-LM 3.11
CrossesCoon Creek
Location3.11 MI E US 63
RouteU.S. Route 412
CountyLawrence County
StateArkansas
Coordinates36.07549, -90.98577
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length99 ft (30.2 m)
Longest span33 ft (10.1 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,900 (2018)
Projected traffic4,373 by 2028
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 412-06B-LM 3.11 over Coon Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is US 412-06B-LM 3.11 over Coon Creek 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 US 412-06B-LM 3.11 over Coon Creek carry?

About 3,900 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is US 412-06B-LM 3.11 over Coon Creek?

The structure is 99 ft (30.2 m) long with a longest span of 33 ft (10.1 m) and a deck 43 ft wide.

Who owns US 412-06B-LM 3.11 over Coon Creek?

It is owned by the State Highway Agency.