US Bridges

Nfa 1888 (sa 6317) over Little Mcadoo Creek

FairPosted for load

Montgomery County, Tennessee · 5 M SE of Clarksville · Structure no. 63S62710003

Built
1960
65 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete
Length
143 ft
5 main spans
Daily traffic
1,350
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1888 (sa 6317) over Little Mcadoo Creek is a concrete tee beam carrying Nfa 1888 (sa 6317) over Little Mcadoo Creek in Montgomery County, Tennessee. It was built in 1960, so it is 65 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 1,350 vehicles a day, roughly 3% of them trucks, projected to reach 1,600 by 2041. The structure is 143 ft (43.6 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesNfa 1888 (sa 6317)
CrossesLittle Mcadoo Creek
Location5 M SE of Clarksville
RouteCounty Highway 1888
CountyMontgomery County
StateTennessee
Coordinates36.46388, -87.25877
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25.4 US tons
Inventory rating19.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length143 ft (43.6 m)
Longest span29 ft (8.8 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,350 (2021)
Projected traffic1,600 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 statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$961,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1888 (sa 6317) over Little Mcadoo Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Nfa 1888 (sa 6317) over Little Mcadoo 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 October 2024.

How much traffic does Nfa 1888 (sa 6317) over Little Mcadoo Creek carry?

About 1,350 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1888 (sa 6317) over Little Mcadoo Creek?

The structure is 143 ft (43.6 m) long with a longest span of 29 ft (8.8 m) and a deck 29 ft wide.

Who owns Nfa 1888 (sa 6317) over Little Mcadoo Creek?

It is owned by the County Highway Agency.