US Bridges

FAP 12 over Big Mcadoo Creek

Good

Montgomery County, Tennessee · 2.5 Mi.Se.Of Clarksville · Structure no. 63SR0120005

Built
1990
35 years old
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
187 ft
4 main spans
Daily traffic
8,931
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 12 over Big Mcadoo Creek is a prestressed concrete continuous box beam or girders - single or spread carrying FAP 12 over Big Mcadoo Creek in Montgomery County, Tennessee. It was built in 1990, so it is 35 years old, younger than the Tennessee average of 47.4 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 8,931 vehicles a day, roughly 4% of them trucks, projected to reach 13,520 by 2040. The structure is 187 ft (57 m) long and 46 ft wide. If it were closed, the detour would be 60.3 mi (97 km).

CarriesFAP 12
CrossesBig Mcadoo Creek
Location2.5 Mi.Se.Of Clarksville
RouteState Highway 12
Coordinates36.47643, -87.24535
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length187 ft (57 m)
Longest span47 ft (14.3 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,931 (2021)
Projected traffic13,520 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed60.3 mi (97 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 12 over Big Mcadoo Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is FAP 12 over Big Mcadoo 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 September 2024.

How much traffic does FAP 12 over Big Mcadoo Creek carry?

About 8,931 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is FAP 12 over Big Mcadoo Creek?

The structure is 187 ft (57 m) long with a longest span of 47 ft (14.3 m) and a deck 46 ft wide.

Who owns FAP 12 over Big Mcadoo Creek?

It is owned by the State Highway Agency.