US Bridges

Nfa 1712 (sa 0904) over Mill Creek

Fair

Carroll County, Tennessee · 3.2 MI NW JCT SR1&SR104 · Structure no. 09017120001

Built
1995
30 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
120 ft
3 main spans
Daily traffic
517
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1712 (sa 0904) over Mill Creek is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa 1712 (sa 0904) over Mill Creek in Carroll County, Tennessee. It was built in 1995, so it is 30 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 517 vehicles a day, roughly 3% of them trucks, projected to reach 848 by 2039. The structure is 120 ft (36.6 m) long and 30 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesNfa 1712 (sa 0904)
CrossesMill Creek
Location3.2 MI NW JCT SR1&SR104
RouteCounty Highway 1712
CountyCarroll County
StateTennessee
Coordinates35.90236, -88.57108
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating33.6 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span40 ft (12.2 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic517 (2021)
Projected traffic848 by 2039
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 1712 (sa 0904) over Mill Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is Nfa 1712 (sa 0904) 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 July 2023.

How much traffic does Nfa 1712 (sa 0904) over Mill Creek carry?

About 517 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1712 (sa 0904) over Mill Creek?

The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 30 ft wide.

Who owns Nfa 1712 (sa 0904) over Mill Creek?

It is owned by the County Highway Agency.