US Bridges

Natchez HWY over Flat Creek

Good

Mobile County, Alabama · 1.3 MI S. US98 · Structure no. 018774

Built
2004
21 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
25 ft
3 main spans
Daily traffic
1,835
2024 count
Owner
County
County Highway Agency

About this bridge

Natchez HWY over Flat Creek is a concrete culvert carrying Natchez HWY over Flat Creek in Mobile County, Alabama. It was built in 2004, so it is 21 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,835 vehicles a day, roughly 2% of them trucks, projected to reach 2,727 by 2044. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 14.3 mi (23 km).

CarriesNatchez HWY
CrossesFlat Creek
Location1.3 MI S. US98
RouteCounty Highway 7
StateAlabama
Coordinates30.81178, -88.3864
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating55.6 US tons
Inventory rating33.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length25 ft (7.6 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 traffic1,835 (2024)
Projected traffic2,727 by 2044
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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$395,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Natchez HWY over Flat Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is Natchez HWY over Flat Creek 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 August 2024.

How much traffic does Natchez HWY over Flat Creek carry?

About 1,835 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Natchez HWY over Flat Creek?

The structure is 25 ft (7.6 m) long with a longest span of 8 ft (2.4 m).

Who owns Natchez HWY over Flat Creek?

It is owned by the County Highway Agency.