US Bridges

Nfa B021 over Middle Fork Drakes Creek

Good

Sumner County, Tennessee · 2.8 MI NE JCT SR52&SR174 · Structure no. 830B0210003

Built
1984
41 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
133 ft
3 main spans
Daily traffic
120
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa B021 over Middle Fork Drakes Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Nfa B021 over Middle Fork Drakes Creek in Sumner County, Tennessee. It was built in 1984, so it is 41 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 120 vehicles a day, roughly 5% of them trucks, projected to reach 192 by 2042. The structure is 133 ft (40.5 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesNfa B021
CrossesMiddle Fork Drakes Creek
Location2.8 MI NE JCT SR52&SR174
RouteCounty Highway 0B021
Coordinates36.5827, -86.32888
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating84.3 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length133 ft (40.5 m)
Longest span43 ft (13.1 m)
Deck width26 ft (7.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2020)
Projected traffic192 by 2042
Trucks5%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa B021 over Middle Fork Drakes Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Nfa B021 over Middle Fork Drakes Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does Nfa B021 over Middle Fork Drakes Creek carry?

About 120 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Nfa B021 over Middle Fork Drakes Creek?

The structure is 133 ft (40.5 m) long with a longest span of 43 ft (13.1 m) and a deck 26 ft wide.

Who owns Nfa B021 over Middle Fork Drakes Creek?

It is owned by the County Highway Agency.