US Bridges

I 55-12SB-LM 63.29 over US 61-SEC 3

Fair

Mississippi County, Arkansas · JCT 61& I 55 · Structure no. 0000000000A3162

Built
1960
65 years old, rebuilt 1987
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
226 ft
3 main spans
Daily traffic
11,029
2018 count
Owner
State
State Highway Agency

About this bridge

I 55-12SB-LM 63.29 over US 61-SEC 3 is a steel continuous stringer/multi-beam or girder carrying I 55-12SB-LM 63.29 over US 61-SEC 3 in Mississippi County, Arkansas. It was built in 1960 and reconstructed in 1987, 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 11,029 vehicles a day, roughly 1% of them trucks, projected to reach 12,812 by 2028. The structure is 226 ft (68.9 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 55-12SB-LM 63.29
CrossesUS 61-SEC 3
LocationJCT 61& I 55
RouteInterstate 55
CountyMississippi County
StateArkansas
Coordinates35.8869, -89.91887
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 inspectionJune 2023
Inspection intervalevery 24 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 rating58 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length226 ft (68.9 m)
Longest span101 ft (30.8 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,029 (2018)
Projected traffic12,812 by 2028
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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 55-12SB-LM 63.29 over US 61-SEC 3 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1987.

What condition is I 55-12SB-LM 63.29 over US 61-SEC 3 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 June 2023.

How much traffic does I 55-12SB-LM 63.29 over US 61-SEC 3 carry?

About 11,029 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is I 55-12SB-LM 63.29 over US 61-SEC 3?

The structure is 226 ft (68.9 m) long with a longest span of 101 ft (30.8 m) and a deck 43 ft wide.

Who owns I 55-12SB-LM 63.29 over US 61-SEC 3?

It is owned by the State Highway Agency.