US Bridges

SR 3 over Swan Creek

Good

Limestone County, Alabama · 4.3 MI N JCT SR 3 & SR 20 · Structure no. 020650

Built
2015
10 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
270 ft
1 main span
Daily traffic
10,098
2023 count
Owner
State
State Highway Agency

About this bridge

SR 3 over Swan Creek is a prestressed concrete stringer/multi-beam or girder carrying SR 3 over Swan Creek in Limestone County, Alabama. It was built in 2015, so it is 10 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 10,098 vehicles a day, roughly 5% of them trucks, projected to reach 16,560 by 2035. The structure is 270 ft (82.3 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 3
CrossesSwan Creek
Location4.3 MI N JCT SR 3 & SR 20
RouteU.S. Route 31
StateAlabama
Coordinates34.68805, -86.95318
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating57.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHL 93
Structure length270 ft (82.3 m)
Longest span90 ft (27.4 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deck0 ft (0 m)

Traffic and service

Average daily traffic10,098 (2023)
Projected traffic16,560 by 2035
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$2.9 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 3 over Swan Creek built?

It was built in 2015, making it 10 years old in 2025.

What condition is SR 3 over Swan 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 June 2023.

How much traffic does SR 3 over Swan Creek carry?

About 10,098 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is SR 3 over Swan Creek?

The structure is 270 ft (82.3 m) long with a longest span of 90 ft (27.4 m) and a deck 42 ft wide.

Who owns SR 3 over Swan Creek?

It is owned by the State Highway Agency.