US Bridges

Nfa 2101 (sa 5603) over Overflow

Fair

Macon County, Tennessee · 5.25 M E of Eulia · Structure no. 56021010003

Built
1962
63 years old
Condition
Fair
inspected August 2023
Type
Tee Beam
Concrete
Length
114 ft
4 main spans
Daily traffic
1,178
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2101 (sa 5603) over Overflow is a concrete tee beam carrying Nfa 2101 (sa 5603) over Overflow in Macon County, Tennessee. It was built in 1962, so it is 63 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 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 1,178 vehicles a day, roughly 3% of them trucks, projected to reach 1,920 by 2041. The structure is 114 ft (34.7 m) long and 29 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesNfa 2101 (sa 5603)
CrossesOverflow
Location5.25 M E of Eulia
RouteCounty Highway 2101
CountyMacon County
StateTennessee
Coordinates36.56608, -86.09386
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.2 US tons
Inventory rating25.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length114 ft (34.7 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 traffic1,178 (2021)
Projected traffic1,920 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$326,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 2101 (sa 5603) over Overflow built?

It was built in 1962, making it 63 years old in 2025.

What condition is Nfa 2101 (sa 5603) over Overflow 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 August 2023.

How much traffic does Nfa 2101 (sa 5603) over Overflow carry?

About 1,178 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 2101 (sa 5603) over Overflow?

The structure is 114 ft (34.7 m) long with a longest span of 29 ft (8.8 m) and a deck 29 ft wide.

Who owns Nfa 2101 (sa 5603) over Overflow?

It is owned by the County Highway Agency.