US Bridges

Fourth ST Nauvoo over Blackwater Creek

Fair

Walker County, Alabama · 500 Ft.W State HWY 5 · Structure no. 002301

Built
1940
85 years old
Condition
Fair
inspected February 2024
Type
Tee Beam
Concrete
Length
102 ft
3 main spans
Daily traffic
1,300
1991 count
Owner
County
County Highway Agency

About this bridge

Fourth ST Nauvoo over Blackwater Creek is a concrete tee beam carrying Fourth ST Nauvoo over Blackwater Creek in Walker County, Alabama. It was built in 1940, so it is 85 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 1,300 vehicles a day, roughly 1% of them trucks, projected to reach 2,120 by 2032. The structure is 102 ft (31.2 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFourth ST Nauvoo
CrossesBlackwater Creek
Location500 Ft.W State HWY 5
RouteCounty Highway 11
CountyWalker County
StateAlabama
Coordinates33.98333, -87.46667
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating45.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length102 ft (31.2 m)
Longest span34 ft (10.4 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (1991)
Projected traffic2,120 by 2032
Trucks1%
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$811,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Fourth ST Nauvoo over Blackwater Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is Fourth ST Nauvoo over Blackwater Creek 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 2024.

How much traffic does Fourth ST Nauvoo over Blackwater Creek carry?

About 1,300 vehicles per day (1991 count), of which roughly 1% are trucks.

How long is Fourth ST Nauvoo over Blackwater Creek?

The structure is 102 ft (31.2 m) long with a longest span of 34 ft (10.4 m) and a deck 28 ft wide.

Who owns Fourth ST Nauvoo over Blackwater Creek?

It is owned by the County Highway Agency.