US Bridges

SH-131/SEC-1/L8.80 over Alligator Bayou

Fair

Lee County, Arkansas · 8.80 East of JCT US 79 · Structure no. 0000000000M4048

Built
1979
46 years old
Condition
Fair
inspected October 2024
Type
Channel Beam
Concrete
Length
62 ft
2 main spans
Daily traffic
117
2018 count
Owner
State
State Highway Agency

About this bridge

SH-131/SEC-1/L8.80 over Alligator Bayou is a concrete channel beam carrying SH-131/SEC-1/L8.80 over Alligator Bayou in Lee County, Arkansas. It was built in 1979, so it is 46 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 117 vehicles a day, roughly 1% of them trucks, projected to reach 68 by 2028. The structure is 62 ft (18.9 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSH-131/SEC-1/L8.80
CrossesAlligator Bayou
Location8.80 East of JCT US 79
RouteState Highway 131
CountyLee County
StateArkansas
Coordinates34.81676, -90.49828
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating30 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadH 15
Structure length62 ft (18.9 m)
Longest span31 ft (9.4 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic117 (2018)
Projected traffic68 by 2028
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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-131/SEC-1/L8.80 over Alligator Bayou built?

It was built in 1979, making it 46 years old in 2025.

What condition is SH-131/SEC-1/L8.80 over Alligator Bayou 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 October 2024.

How much traffic does SH-131/SEC-1/L8.80 over Alligator Bayou carry?

About 117 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is SH-131/SEC-1/L8.80 over Alligator Bayou?

The structure is 62 ft (18.9 m) long with a longest span of 31 ft (9.4 m) and a deck 28 ft wide.

Who owns SH-131/SEC-1/L8.80 over Alligator Bayou?

It is owned by the State Highway Agency.