US Bridges

SR-304 over Swan Creek

Fair

Limestone County, Alabama · 0.6M W SR-304/I-65 · Structure no. 021507

Built
2023
2 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
75 ft
4 main spans
Daily traffic
9,052
2023 count
Owner
State
State Highway Agency

About this bridge

SR-304 over Swan Creek is a concrete culvert carrying SR-304 over Swan Creek in Limestone County, Alabama. It was built in 2023, so it is 2 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 9,052 vehicles a day, roughly 10% of them trucks, projected to reach 18,655 by 2041. The structure is 75 ft (23 m) long.

CarriesSR-304
CrossesSwan Creek
Location0.6M W SR-304/I-65
RouteCounty Highway 24
StateAlabama
Coordinates34.73101, -86.94778
Functional classRural Minor 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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating96.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length75 ft (23 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,052 (2023)
Projected traffic18,655 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$1.1 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR-304 over Swan Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is SR-304 over Swan 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 November 2023.

How much traffic does SR-304 over Swan Creek carry?

About 9,052 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SR-304 over Swan Creek?

The structure is 75 ft (23 m) long with a longest span of 14 ft (4.3 m).

Who owns SR-304 over Swan Creek?

It is owned by the State Highway Agency.