US Bridges

I-55NB-12-LM 66.75 over Burlington SH 239S

Fair

Mississippi County, Arkansas · 0.5 MI So SH 18 · Structure no. 0000000000B3166

Built
1960
65 years old, rebuilt 1988
Condition
Fair
inspected November 2022
Type
Slab
Concrete
Length
984 ft
1 main span
Daily traffic
11,500
2018 count
Owner
State
State Highway Agency

About this bridge

I-55NB-12-LM 66.75 over Burlington SH 239S is a concrete slab carrying I-55NB-12-LM 66.75 over Burlington SH 239S in Mississippi County, Arkansas. It was built in 1960 and reconstructed in 1988, so it is 65 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 11,500 vehicles a day, roughly 52% of them trucks, projected to reach 12,812 by 2028. The structure is 984 ft (299.9 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-55NB-12-LM 66.75
CrossesBurlington SH 239S
Location0.5 MI So SH 18
RouteInterstate 55
CountyMississippi County
StateArkansas
Coordinates35.92036, -89.8742
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum 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 spans1 (+14 approach)
Design loadHS 20 + Mod
Structure length984 ft (299.9 m)
Longest span68 ft (20.6 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,500 (2018)
Projected traffic12,812 by 2028
Trucks52%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-55NB-12-LM 66.75 over Burlington SH 239S built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1988.

What condition is I-55NB-12-LM 66.75 over Burlington SH 239S 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 November 2022.

How much traffic does I-55NB-12-LM 66.75 over Burlington SH 239S carry?

About 11,500 vehicles per day (2018 count), of which roughly 52% are trucks.

How long is I-55NB-12-LM 66.75 over Burlington SH 239S?

The structure is 984 ft (299.9 m) long with a longest span of 68 ft (20.6 m) and a deck 43 ft wide.

Who owns I-55NB-12-LM 66.75 over Burlington SH 239S?

It is owned by the State Highway Agency.