US Bridges

Nfa A261 over Murphy Hollow RD / I-24

Good

Marion County, Tennessee · 1 MI N Ga-Tn ST LN · Structure no. 58I00240059

Built
2015
10 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
231 ft
2 main spans
Daily traffic
320
2020 count
Owner
State
State Highway Agency

About this bridge

Nfa A261 over Murphy Hollow RD / I-24 is a prestressed concrete continuous stringer/multi-beam or girder carrying Nfa A261 over Murphy Hollow RD / I-24 in Marion County, Tennessee. It was built in 2015, so it is 10 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 320 vehicles a day, roughly 2% of them trucks, projected to reach 512 by 2040. The structure is 231 ft (70.4 m) long and 29 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesNfa A261
CrossesMurphy Hollow RD / I-24
Location1 MI N Ga-Tn ST LN
RouteCounty Highway 261
CountyMarion County
StateTennessee
Coordinates34.98793, -85.49827
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.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length231 ft (70.4 m)
Longest span115 ft (35.2 m)
Deck width29 ft (8.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic320 (2020)
Projected traffic512 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa A261 over Murphy Hollow RD / I-24 built?

It was built in 2015, making it 10 years old in 2025.

What condition is Nfa A261 over Murphy Hollow RD / I-24 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 July 2024.

How much traffic does Nfa A261 over Murphy Hollow RD / I-24 carry?

About 320 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A261 over Murphy Hollow RD / I-24?

The structure is 231 ft (70.4 m) long with a longest span of 115 ft (35.2 m) and a deck 29 ft wide.

Who owns Nfa A261 over Murphy Hollow RD / I-24?

It is owned by the State Highway Agency.