US Bridges

County Road 40 over Little New River

Fair

Marion County, Alabama · 1.25 Miles NW Rock City · Structure no. 006430

Built
1900
125 years old, rebuilt 1959
Condition
Fair
inspected February 2025
Type
Culvert
Concrete
Length
64 ft
5 main spans
Daily traffic
500
2001 count
Owner
County
County Highway Agency

About this bridge

County Road 40 over Little New River is a concrete culvert carrying County Road 40 over Little New River in Marion County, Alabama. It was built in 1900 and reconstructed in 1959, so it is 125 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 500 vehicles a day, roughly 35% of them trucks, projected to reach 981 by 2035. The structure is 64 ft (19.5 m) long and 28 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesCounty Road 40
CrossesLittle New River
Location1.25 Miles NW Rock City
RouteCounty Highway 40
CountyMarion County
StateAlabama
Coordinates33.99119, -87.72603
Functional classRural Major 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
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2025
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
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating43.3 US tons
Inventory rating25.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 15
Structure length64 ft (19.5 m)
Longest span12 ft (3.7 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2001)
Projected traffic981 by 2035
Trucks35%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$479,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 40 over Little New River built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1959.

What condition is County Road 40 over Little New River 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 February 2025.

How much traffic does County Road 40 over Little New River carry?

About 500 vehicles per day (2001 count), of which roughly 35% are trucks.

How long is County Road 40 over Little New River?

The structure is 64 ft (19.5 m) long with a longest span of 12 ft (3.7 m) and a deck 28 ft wide.

Who owns County Road 40 over Little New River?

It is owned by the County Highway Agency.