US Bridges

Nfa 1261 (sa 7604) over Mill Creek

Good

Scott County, Tennessee · 8.2 MI SE of Robbins · Structure no. 76S23420007

Built
2004
21 years old
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
101 ft
2 main spans
Daily traffic
232
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1261 (sa 7604) over Mill Creek is a prestressed concrete continuous box beam or girders - multiple carrying Nfa 1261 (sa 7604) over Mill Creek in Scott County, Tennessee. It was built in 2004, so it is 21 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 232 vehicles a day, roughly 3% of them trucks, projected to reach 320 by 2041. The structure is 101 ft (30.8 m) long and 36 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesNfa 1261 (sa 7604)
CrossesMill Creek
Location8.2 MI SE of Robbins
RouteCounty Highway 1261
Coordinates36.26302, -84.48853
Functional classRural Minor Collector

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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.5 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length101 ft (30.8 m)
Longest span48 ft (14.6 m)
Deck width36 ft (11 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic232 (2021)
Projected traffic320 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1261 (sa 7604) over Mill Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is Nfa 1261 (sa 7604) 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 September 2024.

How much traffic does Nfa 1261 (sa 7604) over Mill Creek carry?

About 232 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1261 (sa 7604) over Mill Creek?

The structure is 101 ft (30.8 m) long with a longest span of 48 ft (14.6 m) and a deck 36 ft wide.

Who owns Nfa 1261 (sa 7604) over Mill Creek?

It is owned by the County Highway Agency.