US Bridges

SH 312-02- Lm 0.81 over I 55-SEC 12 LOG66.28

Poor

Mississippi County, Arkansas · 0.81 MI E SH 239 JCT · Structure no. 000000000003165

Built
1960
65 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
360 ft
4 main spans
Daily traffic
380
2018 count
Owner
State
State Highway Agency

About this bridge

SH 312-02- Lm 0.81 over I 55-SEC 12 LOG66.28 is a steel stringer/multi-beam or girder carrying SH 312-02- Lm 0.81 over I 55-SEC 12 LOG66.28 in Mississippi County, Arkansas. It was built in 1960, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 380 vehicles a day, roughly 1% of them trucks, projected to reach 769 by 2028. The structure is 360 ft (109.8 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSH 312-02- Lm 0.81
CrossesI 55-SEC 12 LOG66.28
Location0.81 MI E SH 239 JCT
RouteState Highway 312
Coordinates35.91434, -89.8781
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length360 ft (109.8 m)
Longest span90 ft (27.4 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic380 (2018)
Projected traffic769 by 2028
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 312-02- Lm 0.81 over I 55-SEC 12 LOG66.28 built?

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

What condition is SH 312-02- Lm 0.81 over I 55-SEC 12 LOG66.28 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does SH 312-02- Lm 0.81 over I 55-SEC 12 LOG66.28 carry?

About 380 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is SH 312-02- Lm 0.81 over I 55-SEC 12 LOG66.28?

The structure is 360 ft (109.8 m) long with a longest span of 90 ft (27.4 m) and a deck 31 ft wide.

Who owns SH 312-02- Lm 0.81 over I 55-SEC 12 LOG66.28?

It is owned by the State Highway Agency.