US Bridges

Bonner Hollow RD over Mill Creek

FairPosted for load

Walker County, Alabama · 1 Mill N Dogtown · Structure no. 010246

Built
1970
55 years old, rebuilt 1993
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
89 ft
3 main spans
Daily traffic
160
1991 count
Owner
County
County Highway Agency

About this bridge

Bonner Hollow RD over Mill Creek is a steel stringer/multi-beam or girder carrying Bonner Hollow RD over Mill Creek in Walker County, Alabama. It was built in 1970 and reconstructed in 1993, so it is 55 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. Its operating status is: posted for load restriction.

It carries about 160 vehicles a day, roughly 5% of them trucks, projected to reach 224 by 2032. The structure is 89 ft (27 m) long and 15 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesBonner Hollow RD
CrossesMill Creek
Location1 Mill N Dogtown
RouteCounty Highway 0
StateAlabama
Coordinates33.97131, -87.57203
Functional classRural 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating40.3 US tons
Inventory rating27.2 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans3
Design loadH 15
Structure length89 ft (27 m)
Longest span31 ft (9.4 m)
Deck width15 ft (4.6 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (1991)
Projected traffic224 by 2032
Trucks5%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$409,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Bonner Hollow RD over Mill Creek built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1993.

What condition is Bonner Hollow RD over Mill 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 March 2024.

How much traffic does Bonner Hollow RD over Mill Creek carry?

About 160 vehicles per day (1991 count), of which roughly 5% are trucks.

How long is Bonner Hollow RD over Mill Creek?

The structure is 89 ft (27 m) long with a longest span of 31 ft (9.4 m) and a deck 15 ft wide.

Who owns Bonner Hollow RD over Mill Creek?

It is owned by the County Highway Agency.