US Bridges

Co. Rd. 18 over Poll Bayou Creek

Fair

Washington County, Alabama · .5 Mi. East of U.S. 43 · Structure no. 016029

Built
1974
51 years old
Condition
Fair
inspected April 2024
Type
Channel Beam
Concrete
Length
240 ft
10 main spans
Daily traffic
375
1994 count
Owner
County
County Highway Agency

About this bridge

Co. Rd. 18 over Poll Bayou Creek is a concrete channel beam carrying Co. Rd. 18 over Poll Bayou Creek in Washington County, Alabama. It was built in 1974, so it is 51 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 5 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 375 vehicles a day, roughly 70% of them trucks, projected to reach 934 by 2042. The structure is 240 ft (73.2 m) long and 29 ft wide.

CarriesCo. Rd. 18
CrossesPoll Bayou Creek
Location.5 Mi. East of U.S. 43
RouteCounty Highway 18
StateAlabama
Coordinates31.17893, -87.99184
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
Deck7 GoodSome minor problems.
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 protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.2 US tons
Inventory rating31.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans10
Design loadH 15
Structure length240 ft (73.2 m)
Longest span24 ft (7.3 m)
Deck width29 ft (8.8 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic375 (1994)
Projected traffic934 by 2042
Trucks70%
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$1.8 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Co. Rd. 18 over Poll Bayou Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Co. Rd. 18 over Poll Bayou 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 Co. Rd. 18 over Poll Bayou Creek carry?

About 375 vehicles per day (1994 count), of which roughly 70% are trucks.

How long is Co. Rd. 18 over Poll Bayou Creek?

The structure is 240 ft (73.2 m) long with a longest span of 24 ft (7.3 m) and a deck 29 ft wide.

Who owns Co. Rd. 18 over Poll Bayou Creek?

It is owned by the County Highway Agency.