US Bridges

Blackcat Bottom over Unnamed Creek

Good

Monroe County, Mississippi · Sec 30 T12S R 8E · Structure no. SA4800000000199

Built
1956
69 years old
Condition
Good
inspected January 2024
Type
Slab
Concrete
Length
180 ft
9 main spans
Daily traffic
40
2024 count
Owner
County
County Highway Agency

About this bridge

Blackcat Bottom over Unnamed Creek is a concrete slab carrying Blackcat Bottom over Unnamed Creek in Monroe County, Mississippi. It was built in 1956, so it is 69 years old, older than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 40 vehicles a day, projected to reach 150 by 2043. The structure is 180 ft (54.9 m) long and 31 ft wide.

CarriesBlackcat Bottom
CrossesUnnamed Creek
LocationSec 30 T12S R 8E
RouteCounty Highway 6
Coordinates34.00481, -88.50556
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.6 US tons
Inventory rating28.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadH 15
Structure length180 ft (54.9 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2024)
Projected traffic150 by 2043
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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$448,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Blackcat Bottom over Unnamed Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is Blackcat Bottom over Unnamed Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does Blackcat Bottom over Unnamed Creek carry?

About 40 vehicles per day (2024 count).

How long is Blackcat Bottom over Unnamed Creek?

The structure is 180 ft (54.9 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns Blackcat Bottom over Unnamed Creek?

It is owned by the County Highway Agency.