US Bridges

Norman Bridge Roa over Audubon Ditch

Fair

Montgomery County, Alabama · 1.5 Mi.N.Of US 331 · Structure no. 000153

Built
1920
105 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
30 ft
3 main spans
Daily traffic
3,610
1988 count
Owner
City
City or Municipal Highway Agency

About this bridge

Norman Bridge Roa over Audubon Ditch is a concrete culvert carrying Norman Bridge Roa over Audubon Ditch in Montgomery County, Alabama. It was built in 1920, so it is 105 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 3,610 vehicles a day, roughly 5% of them trucks, projected to reach 5,656 by 2043. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNorman Bridge Roa
CrossesAudubon Ditch
Location1.5 Mi.N.Of US 331
RouteCity Street 0
CountyMontgomery County
StateAlabama
Coordinates32.31775, -86.29851
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating73.4 US tons
Inventory rating44 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length30 ft (9.1 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 traffic3,610 (1988)
Projected traffic5,656 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$403,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Norman Bridge Roa over Audubon Ditch built?

It was built in 1920, making it 105 years old in 2025.

What condition is Norman Bridge Roa over Audubon Ditch 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 July 2023.

How much traffic does Norman Bridge Roa over Audubon Ditch carry?

About 3,610 vehicles per day (1988 count), of which roughly 5% are trucks.

How long is Norman Bridge Roa over Audubon Ditch?

The structure is 30 ft (9.1 m) long with a longest span of 10 ft (3 m).

Who owns Norman Bridge Roa over Audubon Ditch?

It is owned by the City or Municipal Highway Agency.