US Bridges

Knox Road over Munsons Creek

FairPosted for load

Attala County, Mississippi · Sec 14 T14N R 7E · Structure no. SA0400000000074

Built
1992
33 years old
Condition
Fair
inspected December 2024
Type
Other
Steel
Length
60 ft
1 main span
Daily traffic
100
2024 count
Owner
County
County Highway Agency

About this bridge

Knox Road over Munsons Creek is a steel other carrying Knox Road over Munsons Creek in Attala County, Mississippi. It was built in 1992, so it is 33 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 8% of them trucks, projected to reach 150 by 2044. The structure is 60 ft (18.3 m) long and 21 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesKnox Road
CrossesMunsons Creek
LocationSec 14 T14N R 7E
RouteCounty Highway 179
CountyAttala County
StateMississippi
Coordinates33.06936, -89.55442
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy0: Immediate repair necessary to put back in service
Approach roadway alignment8: Equal to present desirable criteria
Operating rating9 US tons
Inventory rating5.4 US tons

Structure

Structure typeOther
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 15
Structure length60 ft (18.3 m)
Longest span60 ft (18.3 m)
Deck width21 ft (6.5 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2024)
Projected traffic150 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$175,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Knox Road over Munsons Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Knox Road over Munsons 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 December 2024.

How much traffic does Knox Road over Munsons Creek carry?

About 100 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Knox Road over Munsons Creek?

The structure is 60 ft (18.3 m) long with a longest span of 60 ft (18.3 m) and a deck 21 ft wide.

Who owns Knox Road over Munsons Creek?

It is owned by the County Highway Agency.