US Bridges

Co. Rd. 29 over Blackwater Creek Relief

FairPosted for load

Walker County, Alabama · .3MI. West City Limits · Structure no. 010334

Built
1970
55 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
44 ft
1 main span
Daily traffic
400
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Co. Rd. 29 over Blackwater Creek Relief is a steel stringer/multi-beam or girder carrying Co. Rd. 29 over Blackwater Creek Relief in Walker County, Alabama. It was built in 1970, so it is 55 years old, older 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 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 400 vehicles a day, roughly 1% of them trucks, projected to reach 500 by 2044. The structure is 44 ft (13.4 m) long and 19 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCo. Rd. 29
CrossesBlackwater Creek Relief
Location.3MI. West City Limits
RouteCity Street 0
StateAlabama
Coordinates33.98333, -87.49167
Functional classUrban 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.
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating14.9 US tons
Inventory rating8.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length44 ft (13.4 m)
Longest span44 ft (13.4 m)
Deck width19 ft (5.7 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2024)
Projected traffic500 by 2044
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$274,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Co. Rd. 29 over Blackwater Creek Relief built?

It was built in 1970, making it 55 years old in 2025.

What condition is Co. Rd. 29 over Blackwater Creek Relief 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 July 2024.

How much traffic does Co. Rd. 29 over Blackwater Creek Relief carry?

About 400 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Co. Rd. 29 over Blackwater Creek Relief?

The structure is 44 ft (13.4 m) long with a longest span of 44 ft (13.4 m) and a deck 19 ft wide.

Who owns Co. Rd. 29 over Blackwater Creek Relief?

It is owned by the City or Municipal Highway Agency.