US Bridges

US231; US431; SR1 over Huntsville Spring Branch

Fair

Madison County, Alabama · JCT Governors DR * US231S · Structure no. 011783

Built
1977
48 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
205 ft
6 main spans
Daily traffic
22,573
2023 count
Owner
State
State Highway Agency

About this bridge

US231; US431; SR1 over Huntsville Spring Branch is a prestressed concrete stringer/multi-beam or girder carrying US231; US431; SR1 over Huntsville Spring Branch in Madison County, Alabama. It was built in 1977, so it is 48 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 22,573 vehicles a day, roughly 3% of them trucks, projected to reach 31,602 by 2043. The structure is 205 ft (62.5 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesUS231; US431; SR1
CrossesHuntsville Spring Branch
LocationJCT Governors DR * US231S
RouteU.S. Route 231
CountyMadison County
StateAlabama
Coordinates34.72085, -86.59297
Functional classUrban Other Principal Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating73.3 US tons
Inventory rating45.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length205 ft (62.5 m)
Longest span34 ft (10.4 m)
Deck width47 ft (14.3 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,573 (2023)
Projected traffic31,602 by 2043
Trucks3%
Lanes on structure3
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.5 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US231; US431; SR1 over Huntsville Spring Branch built?

It was built in 1977, making it 48 years old in 2025.

What condition is US231; US431; SR1 over Huntsville Spring Branch 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 December 2024.

How much traffic does US231; US431; SR1 over Huntsville Spring Branch carry?

About 22,573 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is US231; US431; SR1 over Huntsville Spring Branch?

The structure is 205 ft (62.5 m) long with a longest span of 34 ft (10.4 m) and a deck 47 ft wide.

Who owns US231; US431; SR1 over Huntsville Spring Branch?

It is owned by the State Highway Agency.