US Bridges

SH 86 Log 2.75 over Big Lagrue Bayou

Fair

Prairie County, Arkansas · 2.8 MI S JCT US 70 & 86 · Structure no. 0000000000M3085

Built
1953
72 years old, rebuilt 1967
Condition
Fair
inspected May 2023
Type
Channel Beam
Concrete
Length
45 ft
3 main spans
Daily traffic
140
2018 count
Owner
State
State Highway Agency

About this bridge

SH 86 Log 2.75 over Big Lagrue Bayou is a concrete channel beam carrying SH 86 Log 2.75 over Big Lagrue Bayou in Prairie County, Arkansas. It was built in 1953 and reconstructed in 1967, so it is 72 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 140 vehicles a day, roughly 5% of them trucks, projected to reach 199 by 2028. The structure is 45 ft (13.7 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSH 86 Log 2.75
CrossesBig Lagrue Bayou
Location2.8 MI S JCT US 70 & 86
RouteState Highway 86
CountyPrairie County
StateArkansas
Coordinates34.74302, -91.68017
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.
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 protection7 GoodSome minor problems.
Last inspectionMay 2023
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 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 rating60 US tons
Inventory rating36 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length45 ft (13.7 m)
Longest span15 ft (4.6 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2018)
Projected traffic199 by 2028
Trucks5%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$50,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 86 Log 2.75 over Big Lagrue Bayou built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1967.

What condition is SH 86 Log 2.75 over Big Lagrue 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 May 2023.

How much traffic does SH 86 Log 2.75 over Big Lagrue Bayou carry?

About 140 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is SH 86 Log 2.75 over Big Lagrue Bayou?

The structure is 45 ft (13.7 m) long with a longest span of 15 ft (4.6 m) and a deck 25 ft wide.

Who owns SH 86 Log 2.75 over Big Lagrue Bayou?

It is owned by the State Highway Agency.