US Bridges

Microwave Road over Mill Creek

Good

Tuscaloosa County, Alabama · 2.0MI FM Int/W Romulus RD · Structure no. 019534

Built
2005
20 years old
Condition
Good
inspected October 2024
Type
Channel Beam
Concrete
Length
34 ft
1 main span
Daily traffic
50
2005 count
Owner
County
County Highway Agency

About this bridge

Microwave Road over Mill Creek is a concrete channel beam carrying Microwave Road over Mill Creek in Tuscaloosa County, Alabama. It was built in 2005, so it is 20 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 50 vehicles a day, projected to reach 100 by 2034. The structure is 34 ft (10.4 m) long and 31 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesMicrowave Road
CrossesMill Creek
Location2.0MI FM Int/W Romulus RD
RouteCounty Highway 140
StateAlabama
Coordinates33.21337, -87.73842
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating81.2 US tons
Inventory rating48.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span34 ft (10.4 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2005)
Projected traffic100 by 2034
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$386,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Microwave Road over Mill Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is Microwave Road over Mill 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 October 2024.

How much traffic does Microwave Road over Mill Creek carry?

About 50 vehicles per day (2005 count).

How long is Microwave Road over Mill Creek?

The structure is 34 ft (10.4 m) long with a longest span of 34 ft (10.4 m) and a deck 31 ft wide.

Who owns Microwave Road over Mill Creek?

It is owned by the County Highway Agency.