US Bridges

Nfa 1185 (sa 0610) over South Mouse Creek

FairPosted for load

Bradley County, Tennessee · .1MI East of I75 · Structure no. 06011850001

Built
1939
86 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
132 ft
3 main spans
Daily traffic
694
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1185 (sa 0610) over South Mouse Creek is a steel continuous stringer/multi-beam or girder carrying Nfa 1185 (sa 0610) over South Mouse Creek in Bradley County, Tennessee. It was built in 1939, so it is 86 years old, older 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 694 vehicles a day, roughly 3% of them trucks, projected to reach 1,110 by 2042. The structure is 132 ft (40.2 m) long and 22 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNfa 1185 (sa 0610)
CrossesSouth Mouse Creek
Location.1MI East of I75
RouteCounty Highway 1185
Coordinates35.30455, -84.80037
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating15.8 US tons
Inventory rating12.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 10
Structure length132 ft (40.2 m)
Longest span49 ft (14.9 m)
Deck width22 ft (6.6 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic694 (2021)
Projected traffic1,110 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1185 (sa 0610) over South Mouse Creek built?

It was built in 1939, making it 86 years old in 2025.

What condition is Nfa 1185 (sa 0610) over South Mouse 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 September 2023.

How much traffic does Nfa 1185 (sa 0610) over South Mouse Creek carry?

About 694 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1185 (sa 0610) over South Mouse Creek?

The structure is 132 ft (40.2 m) long with a longest span of 49 ft (14.9 m) and a deck 22 ft wide.

Who owns Nfa 1185 (sa 0610) over South Mouse Creek?

It is owned by the County Highway Agency.