US Bridges

County Line RD over Mckiernan Creek

Fair

Colbert County, Alabama · Clr S of Mt. Pleasant RD · Structure no. 018728

Built
2003
22 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
33 ft
2 main spans
Daily traffic
2,975
2006 count
Owner
County
County Highway Agency

About this bridge

County Line RD over Mckiernan Creek is a concrete culvert carrying County Line RD over Mckiernan Creek in Colbert County, Alabama. It was built in 2003, so it is 22 years old, younger than the Alabama average of 51.1 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 2,975 vehicles a day, roughly 10% of them trucks, projected to reach 4,480 by 2044. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesCounty Line RD
CrossesMckiernan Creek
LocationClr S of Mt. Pleasant RD
RouteCounty Highway B0004
CountyColbert County
StateAlabama
Coordinates34.77015, -87.5289
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating86.9 US tons
Inventory rating52.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,975 (2006)
Projected traffic4,480 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedNone recorded
Estimated improvement cost$859,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Line RD over Mckiernan Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is County Line RD over Mckiernan 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 April 2024.

How much traffic does County Line RD over Mckiernan Creek carry?

About 2,975 vehicles per day (2006 count), of which roughly 10% are trucks.

How long is County Line RD over Mckiernan Creek?

The structure is 33 ft (10.1 m) long with a longest span of 16 ft (4.9 m).

Who owns County Line RD over Mckiernan Creek?

It is owned by the County Highway Agency.