US Bridges

Johnson Road over Huntsville Spring Branch

Fair

Madison County, Alabama · Johnson Rd*hunts Spg Br · Structure no. 009754

Built
1992
33 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
198 ft
3 main spans
Daily traffic
16,660
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Johnson Road over Huntsville Spring Branch is a prestressed concrete stringer/multi-beam or girder carrying Johnson Road over Huntsville Spring Branch in Madison County, Alabama. It was built in 1992, so it is 33 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 16,660 vehicles a day, roughly 5% of them trucks, projected to reach 23,324 by 2044. The structure is 198 ft (60.4 m) long and 78 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesJohnson Road
CrossesHuntsville Spring Branch
LocationJohnson Rd*hunts Spg Br
RouteCity Street 0
CountyMadison County
StateAlabama
Coordinates34.68983, -86.59606
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating78.9 US tons
Inventory rating47.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length198 ft (60.4 m)
Longest span67 ft (20.4 m)
Deck width78 ft (23.8 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,660 (2024)
Projected traffic23,324 by 2044
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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$4.2 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Johnson Road over Huntsville Spring Branch built?

It was built in 1992, making it 33 years old in 2025.

What condition is Johnson Road 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 October 2024.

How much traffic does Johnson Road over Huntsville Spring Branch carry?

About 16,660 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Johnson Road over Huntsville Spring Branch?

The structure is 198 ft (60.4 m) long with a longest span of 67 ft (20.4 m) and a deck 78 ft wide.

Who owns Johnson Road over Huntsville Spring Branch?

It is owned by the City or Municipal Highway Agency.