US Bridges

Metrology DR over Trib Huntsville Spr Br

Fair

Madison County, Alabama · Calibration DR & Bld 5437 · Structure no. DAPAMCRED0VBC58

Built
1970
55 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
100
2016 count
Owner
Federal
Army

About this bridge

Metrology DR over Trib Huntsville Spr Br is a concrete culvert carrying Metrology DR over Trib Huntsville Spr Br in Madison County, Alabama. It was built in 1970, so it is 55 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 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 400 by 2046. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMetrology DR
CrossesTrib Huntsville Spr Br
LocationCalibration DR & Bld 5437
CountyMadison County
StateAlabama
Coordinates34.64381, -86.63606
Functional classRural Minor 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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2016)
Projected traffic400 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerArmy
Maintained byArmy
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Metrology DR over Trib Huntsville Spr Br built?

It was built in 1970, making it 55 years old in 2025.

What condition is Metrology DR over Trib Huntsville Spr Br 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 August 2024.

How much traffic does Metrology DR over Trib Huntsville Spr Br carry?

About 100 vehicles per day (2016 count), of which roughly 10% are trucks.

How long is Metrology DR over Trib Huntsville Spr Br?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m).

Who owns Metrology DR over Trib Huntsville Spr Br?

It is owned by the Army.