US Bridges

Co. Rd. 575 over Big Branch

Good

DeKalb County, Alabama · T6S R7E Sec. 12 · Structure no. 019946

Built
2007
18 years old
Condition
Good
inspected September 2023
Type
Culvert
Steel
Length
41 ft
4 main spans
Daily traffic
77
2023 count
Owner
County
County Highway Agency

About this bridge

Co. Rd. 575 over Big Branch is a steel culvert carrying Co. Rd. 575 over Big Branch in DeKalb County, Alabama. It was built in 2007, so it is 18 years old, younger than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 77 vehicles a day, projected to reach 14 by 2043. The structure is 41 ft (12.4 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCo. Rd. 575
CrossesBig Branch
LocationT6S R7E Sec. 12
RouteCounty Highway 575
CountyDeKalb County
StateAlabama
Coordinates34.52951, -85.85621
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating98 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadHS 20
Structure length41 ft (12.4 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic77 (2023)
Projected traffic14 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost$487,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Co. Rd. 575 over Big Branch built?

It was built in 2007, making it 18 years old in 2025.

What condition is Co. Rd. 575 over Big Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does Co. Rd. 575 over Big Branch carry?

About 77 vehicles per day (2023 count).

How long is Co. Rd. 575 over Big Branch?

The structure is 41 ft (12.4 m) long with a longest span of 8 ft (2.4 m).

Who owns Co. Rd. 575 over Big Branch?

It is owned by the County Highway Agency.