US Bridges

SH 18-07- Lm 2.57 over I 55-SEC 12

Fair

Mississippi County, Arkansas · Blytheville · Structure no. 000000000003167

Built
1960
65 years old, rebuilt 1991
Condition
Fair
inspected April 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
326 ft
6 main spans
Daily traffic
17,000
2018 count
Owner
State
State Highway Agency

About this bridge

SH 18-07- Lm 2.57 over I 55-SEC 12 is a steel stringer/multi-beam or girder carrying SH 18-07- Lm 2.57 over I 55-SEC 12 in Mississippi County, Arkansas. It was built in 1960 and reconstructed in 1991, 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 17,000 vehicles a day, roughly 1% of them trucks, projected to reach 21,964 by 2028. The structure is 326 ft (99.5 m) long and 67 ft wide.

Location

Open in Google Maps
CarriesSH 18-07- Lm 2.57
CrossesI 55-SEC 12
LocationBlytheville
RouteState Highway 18
CountyMississippi County
StateArkansas
Coordinates35.92887, -89.87493
Functional classUrban Other Principal 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length326 ft (99.5 m)
Longest span65 ft (19.8 m)
Deck width67 ft (20.4 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,000 (2018)
Projected traffic21,964 by 2028
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 SH 18-07- Lm 2.57 over I 55-SEC 12 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1991.

What condition is SH 18-07- Lm 2.57 over I 55-SEC 12 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 April 2022.

How much traffic does SH 18-07- Lm 2.57 over I 55-SEC 12 carry?

About 17,000 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is SH 18-07- Lm 2.57 over I 55-SEC 12?

The structure is 326 ft (99.5 m) long with a longest span of 65 ft (19.8 m) and a deck 67 ft wide.

Who owns SH 18-07- Lm 2.57 over I 55-SEC 12?

It is owned by the State Highway Agency.