US Bridges

SH 31-01 Lm 3.33 over Plum Bayou

Fair

Jefferson County, Arkansas · 2.6 MI S SH 15-SHERRILL · Structure no. 000000000002889

Built
1954
71 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
227 ft
5 main spans
Daily traffic
790
2018 count
Owner
State
State Highway Agency

About this bridge

SH 31-01 Lm 3.33 over Plum Bayou is a steel stringer/multi-beam or girder carrying SH 31-01 Lm 3.33 over Plum Bayou in Jefferson 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 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 790 vehicles a day, roughly 2% of them trucks, projected to reach 520 by 2038. The structure is 227 ft (69.2 m) long and 29 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSH 31-01 Lm 3.33
CrossesPlum Bayou
Location2.6 MI S SH 15-SHERRILL
RouteState Highway 31
CountyJefferson County
StateArkansas
Coordinates34.34541, -91.95954
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length227 ft (69.2 m)
Longest span45 ft (13.7 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic790 (2018)
Projected traffic520 by 2038
Trucks2%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$722,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 31-01 Lm 3.33 over Plum Bayou built?

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

What condition is SH 31-01 Lm 3.33 over Plum 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 January 2024.

How much traffic does SH 31-01 Lm 3.33 over Plum Bayou carry?

About 790 vehicles per day (2018 count), of which roughly 2% are trucks.

How long is SH 31-01 Lm 3.33 over Plum Bayou?

The structure is 227 ft (69.2 m) long with a longest span of 45 ft (13.7 m) and a deck 29 ft wide.

Who owns SH 31-01 Lm 3.33 over Plum Bayou?

It is owned by the State Highway Agency.