US Bridges

Nfa 1705 (sa 2011) over Turnbo Creek

Fair

Decatur County, Tennessee · 0.9 MI NE JCT SR114&SR202 · Structure no. 200A2910001

Built
1988
37 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete Continuous
Length
56 ft
3 main spans
Daily traffic
118
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1705 (sa 2011) over Turnbo Creek is a concrete continuous culvert carrying Nfa 1705 (sa 2011) over Turnbo Creek in Decatur County, Tennessee. It was built in 1988, so it is 37 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 118 vehicles a day, roughly 4% of them trucks, projected to reach 189 by 2042. The structure is 56 ft (17 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa 1705 (sa 2011)
CrossesTurnbo Creek
Location0.9 MI NE JCT SR114&SR202
RouteCounty Highway 1705
CountyDecatur County
StateTennessee
Coordinates35.4683, -88.14086
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length56 ft (17 m)
Longest span15 ft (4.7 m)
Deck width29 ft (8.8 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic118 (2021)
Projected traffic189 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1705 (sa 2011) over Turnbo Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Nfa 1705 (sa 2011) over Turnbo 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 January 2024.

How much traffic does Nfa 1705 (sa 2011) over Turnbo Creek carry?

About 118 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Nfa 1705 (sa 2011) over Turnbo Creek?

The structure is 56 ft (17 m) long with a longest span of 15 ft (4.7 m) and a deck 29 ft wide.

Who owns Nfa 1705 (sa 2011) over Turnbo Creek?

It is owned by the County Highway Agency.