US Bridges

Thompson Road over L * N Railroad

Fair

Morgan County, Alabama · 0.2 MI E. US 31 · Structure no. 007637

Built
1962
63 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
164 ft
3 main spans
Daily traffic
5,621
2006 count
Owner
City
City or Municipal Highway Agency

About this bridge

Thompson Road over L * N Railroad is a steel continuous stringer/multi-beam or girder carrying Thompson Road over L * N Railroad in Morgan County, Alabama. It was built in 1962, so it is 63 years old, older 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 5,621 vehicles a day, roughly 20% of them trucks, projected to reach 6,373 by 2030. The structure is 164 ft (50 m) long and 23 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesThompson Road
CrossesL * N Railroad
Location0.2 MI E. US 31
RouteCity Street 0
CountyMorgan County
StateAlabama
Coordinates34.41333, -86.91667
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating44.1 US tons
Inventory rating26.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length164 ft (50 m)
Longest span60 ft (18.3 m)
Deck width23 ft (7.1 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,621 (2006)
Projected traffic6,373 by 2030
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.2 mi (10 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Thompson Road over L * N Railroad built?

It was built in 1962, making it 63 years old in 2025.

What condition is Thompson Road over L * N Railroad 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 2023.

How much traffic does Thompson Road over L * N Railroad carry?

About 5,621 vehicles per day (2006 count), of which roughly 20% are trucks.

How long is Thompson Road over L * N Railroad?

The structure is 164 ft (50 m) long with a longest span of 60 ft (18.3 m) and a deck 23 ft wide.

Who owns Thompson Road over L * N Railroad?

It is owned by the City or Municipal Highway Agency.