US Bridges

FAP 77 over Rock Creek

Good

Carroll County, Tennessee · 1.1 Mi.W.Of Huntingdon · Structure no. 09SR0770013

Built
1997
28 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
77 ft
3 main spans
Daily traffic
3,385
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 77 over Rock Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying FAP 77 over Rock Creek in Carroll County, Tennessee. It was built in 1997, so it is 28 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 3,385 vehicles a day, roughly 6% of them trucks, projected to reach 5,194 by 2042. The structure is 77 ft (23.5 m) long and 46 ft wide. If it were closed, the detour would be 51 mi (82 km).

CarriesFAP 77
CrossesRock Creek
Location1.1 Mi.W.Of Huntingdon
RouteU.S. Route 70
Coordinates36.00942, -88.455
Functional classRural 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 inspectionJuly 2023
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 alignment8: Equal to present desirable criteria
Operating rating70.3 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length77 ft (23.5 m)
Longest span28 ft (8.5 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,385 (2021)
Projected traffic5,194 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed51 mi (82 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 77 over Rock Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is FAP 77 over Rock 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 July 2023.

How much traffic does FAP 77 over Rock Creek carry?

About 3,385 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is FAP 77 over Rock Creek?

The structure is 77 ft (23.5 m) long with a longest span of 28 ft (8.5 m) and a deck 46 ft wide.

Who owns FAP 77 over Rock Creek?

It is owned by the State Highway Agency.