US Bridges

I 55-12SB-LM 44.54 over Upper Sandy Bayou

FairPosted for load

Mississippi County, Arkansas · 0.1 MI No JCT SH 181 · Structure no. 0000000000A3288

Built
1962
63 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete
Length
120 ft
4 main spans
Daily traffic
12,500
2018 count
Owner
State
State Highway Agency

About this bridge

I 55-12SB-LM 44.54 over Upper Sandy Bayou is a concrete slab carrying I 55-12SB-LM 44.54 over Upper Sandy Bayou in Mississippi County, Arkansas. It was built in 1962, so it is 63 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. Its operating status is: posted for load restriction.

It carries about 12,500 vehicles a day, roughly 46% of them trucks, projected to reach 12,000 by 2033. The structure is 120 ft (36.6 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 55-12SB-LM 44.54
CrossesUpper Sandy Bayou
Location0.1 MI No JCT SH 181
RouteInterstate 55
CountyMississippi County
StateArkansas
Coordinates35.65105, -90.08363
Functional classRural Principal Arterial - Interstate

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41 US tons
Inventory rating24 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span30 ft (9.1 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,500 (2018)
Projected traffic12,000 by 2033
Trucks46%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$234,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I 55-12SB-LM 44.54 over Upper Sandy Bayou built?

It was built in 1962, making it 63 years old in 2025.

What condition is I 55-12SB-LM 44.54 over Upper Sandy 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 July 2024.

How much traffic does I 55-12SB-LM 44.54 over Upper Sandy Bayou carry?

About 12,500 vehicles per day (2018 count), of which roughly 46% are trucks.

How long is I 55-12SB-LM 44.54 over Upper Sandy Bayou?

The structure is 120 ft (36.6 m) long with a longest span of 30 ft (9.1 m) and a deck 44 ft wide.

Who owns I 55-12SB-LM 44.54 over Upper Sandy Bayou?

It is owned by the State Highway Agency.