US Bridges

SH 181-02- Lm 5.99 over National Ditch

Fair

Mississippi County, Arkansas · 5.99 MI N JCT SH 140 · Structure no. 000000000003826

Built
1964
61 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
308 ft
11 main spans
Daily traffic
949
2018 count
Owner
State
State Highway Agency

About this bridge

SH 181-02- Lm 5.99 over National Ditch is a concrete slab carrying SH 181-02- Lm 5.99 over National Ditch in Mississippi County, Arkansas. It was built in 1964, so it is 61 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 5 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 949 vehicles a day, roughly 1% of them trucks, projected to reach 1,171 by 2028. The structure is 308 ft (93.9 m) long and 29 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesSH 181-02- Lm 5.99
CrossesNational Ditch
Location5.99 MI N JCT SH 140
RouteState Highway 181
CountyMississippi County
StateArkansas
Coordinates35.7854, -90.07371
Functional classRural Major Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating24 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans11
Design loadH 15
Structure length308 ft (93.9 m)
Longest span28 ft (8.5 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic949 (2018)
Projected traffic1,171 by 2028
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 181-02- Lm 5.99 over National Ditch built?

It was built in 1964, making it 61 years old in 2025.

What condition is SH 181-02- Lm 5.99 over National Ditch 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 May 2024.

How much traffic does SH 181-02- Lm 5.99 over National Ditch carry?

About 949 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is SH 181-02- Lm 5.99 over National Ditch?

The structure is 308 ft (93.9 m) long with a longest span of 28 ft (8.5 m) and a deck 29 ft wide.

Who owns SH 181-02- Lm 5.99 over National Ditch?

It is owned by the State Highway Agency.