US Bridges

County Road 55 over Muddy Prong Creek

Good

Shelby County, Alabama · 1150 South US 280 · Structure no. 020795

Built
2016
9 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
58 ft
4 main spans
Daily traffic
2,356
2024 count
Owner
County
County Highway Agency

About this bridge

County Road 55 over Muddy Prong Creek is a concrete culvert carrying County Road 55 over Muddy Prong Creek in Shelby County, Alabama. It was built in 2016, so it is 9 years old, younger than the Alabama average of 51.1 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 2,356 vehicles a day, roughly 16% of them trucks, projected to reach 3,051 by 2044. The structure is 58 ft (17.8 m) long and 45 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty Road 55
CrossesMuddy Prong Creek
Location1150 South US 280
RouteCounty Highway 55
CountyShelby County
StateAlabama
Coordinates33.34661, -86.53704
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.8 US tons
Inventory rating52.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length58 ft (17.8 m)
Longest span14 ft (4.3 m)
Deck width45 ft (13.7 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,356 (2024)
Projected traffic3,051 by 2044
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$711,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 55 over Muddy Prong Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is County Road 55 over Muddy Prong 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 May 2024.

How much traffic does County Road 55 over Muddy Prong Creek carry?

About 2,356 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is County Road 55 over Muddy Prong Creek?

The structure is 58 ft (17.8 m) long with a longest span of 14 ft (4.3 m) and a deck 45 ft wide.

Who owns County Road 55 over Muddy Prong Creek?

It is owned by the County Highway Agency.