US Bridges

FAP 78 over Drainage Ditch

Fair

Lake County, Tennessee · .2 M S of SR213 · Structure no. 48SR0780013

Built
1999
26 years old
Condition
Fair
inspected May 2024
Type
Culvert
Steel
Length
31 ft
4 main spans
Daily traffic
461
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 78 over Drainage Ditch is a steel culvert carrying FAP 78 over Drainage Ditch in Lake County, Tennessee. It was built in 1999, so it is 26 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 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 461 vehicles a day, roughly 6% of them trucks, projected to reach 560 by 2040. The structure is 31 ft (9.4 m) long and 60 ft wide. If it were closed, the detour would be 39.1 mi (63 km).

Location

Open in Google Maps
CarriesFAP 78
CrossesDrainage Ditch
Location.2 M S of SR213
RouteState Highway 78
CountyLake County
StateTennessee
Coordinates36.46436, -89.39297
Functional classRural Minor Arterial

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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadH 20
Structure length31 ft (9.4 m)
Longest span6 ft (1.8 m)
Deck width60 ft (18.3 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic461 (2021)
Projected traffic560 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.1 mi (63 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 78 over Drainage Ditch built?

It was built in 1999, making it 26 years old in 2025.

What condition is FAP 78 over Drainage Ditch 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 FAP 78 over Drainage Ditch carry?

About 461 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is FAP 78 over Drainage Ditch?

The structure is 31 ft (9.4 m) long with a longest span of 6 ft (1.8 m) and a deck 60 ft wide.

Who owns FAP 78 over Drainage Ditch?

It is owned by the State Highway Agency.