US Bridges

Coon Box Road over Shankstown Creek

Fair

Jefferson County, Mississippi · SEC_53_T10N_R 1E · Structure no. SA3200000000077

Built
1993
32 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
211 ft
5 main spans
Daily traffic
80
2023 count
Owner
County
County Highway Agency

About this bridge

Coon Box Road over Shankstown Creek is a prestressed concrete stringer/multi-beam or girder carrying Coon Box Road over Shankstown Creek in Jefferson County, Mississippi. It was built in 1993, so it is 32 years old, younger than the Mississippi average of 38.9 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 80 vehicles a day, roughly 8% of them trucks, projected to reach 110 by 2043. The structure is 211 ft (64.3 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCoon Box Road
CrossesShankstown Creek
LocationSEC_53_T10N_R 1E
RouteCounty Highway 54
CountyJefferson County
StateMississippi
Coordinates31.78961, -91.06922
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.4 US tons
Inventory rating40.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length211 ft (64.3 m)
Longest span60 ft (18.3 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2023)
Projected traffic110 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$979,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Coon Box Road over Shankstown Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is Coon Box Road over Shankstown Creek 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 2023.

How much traffic does Coon Box Road over Shankstown Creek carry?

About 80 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Coon Box Road over Shankstown Creek?

The structure is 211 ft (64.3 m) long with a longest span of 60 ft (18.3 m) and a deck 29 ft wide.

Who owns Coon Box Road over Shankstown Creek?

It is owned by the County Highway Agency.