US Bridges

Nfa 1168 (sa 1807) over Byrd Creek

Fair

Cumberland County, Tennessee · South of I40 · Structure no. 18F00130001

Built
1934
91 years old
Condition
Fair
inspected May 2024
Type
Arch - Deck
Masonry
Length
41 ft
1 main span
Daily traffic
586
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1168 (sa 1807) over Byrd Creek is a masonry arch - deck carrying Nfa 1168 (sa 1807) over Byrd Creek in Cumberland County, Tennessee. It was built in 1934, so it is 91 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.

It carries about 586 vehicles a day, roughly 3% of them trucks, projected to reach 938 by 2042. The structure is 41 ft (12.5 m) long and 28 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesNfa 1168 (sa 1807)
CrossesByrd Creek
LocationSouth of I40
RouteCounty Highway 1168
Coordinates35.92339, -84.93561
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
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans1
Design loadH 15
Structure length41 ft (12.5 m)
Longest span38 ft (11.6 m)
Deck width28 ft (8.6 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic586 (2021)
Projected traffic938 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$323,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1168 (sa 1807) over Byrd Creek built?

It was built in 1934, making it 91 years old in 2025.

What condition is Nfa 1168 (sa 1807) over Byrd 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 May 2024.

How much traffic does Nfa 1168 (sa 1807) over Byrd Creek carry?

About 586 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1168 (sa 1807) over Byrd Creek?

The structure is 41 ft (12.5 m) long with a longest span of 38 ft (11.6 m) and a deck 28 ft wide.

Who owns Nfa 1168 (sa 1807) over Byrd Creek?

It is owned by the County Highway Agency.