US Bridges

SR 109 over I65

Good

Robertson County, Tennessee · 0.4 MI NW JCT SR31&SR109 · Structure no. 74I00650043

Built
2020
5 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
346 ft
4 main spans
Daily traffic
13,240
2021 count
Owner
State
State Highway Agency

About this bridge

SR 109 over I65 is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 109 over I65 in Robertson County, Tennessee. It was built in 2020, so it is 5 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 13,240 vehicles a day, roughly 9% of them trucks, projected to reach 21,184 by 2042. The structure is 346 ft (105.5 m) long and 98 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesSR 109
CrossesI65
Location0.4 MI NW JCT SR31&SR109
RouteCounty Highway SR109
Coordinates36.63066, -86.57335
Functional classUrban Other Principal Arterial

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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length346 ft (105.5 m)
Longest span145 ft (44.3 m)
Deck width98 ft (29.9 m)
Roadway width98 ft (29.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,240 (2021)
Projected traffic21,184 by 2042
Trucks9%
Lanes on structure4
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 SR 109 over I65 built?

It was built in 2020, making it 5 years old in 2025.

What condition is SR 109 over I65 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 March 2024.

How much traffic does SR 109 over I65 carry?

About 13,240 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is SR 109 over I65?

The structure is 346 ft (105.5 m) long with a longest span of 145 ft (44.3 m) and a deck 98 ft wide.

Who owns SR 109 over I65?

It is owned by the State Highway Agency.