US Bridges

I40 over I40 Ll /Sr 840-RMP-NW&SE

Fair

Dickson County, Tennessee · I40-SR840 in Dickson Co. · Structure no. 22I00400022

Built
2000
25 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
502 ft
2 main spans
Daily traffic
50,777
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over I40 Ll /Sr 840-RMP-NW&SE is a steel continuous stringer/multi-beam or girder carrying I40 over I40 Ll /Sr 840-RMP-NW&SE in Dickson County, Tennessee. It was built in 2000, so it is 25 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 50,777 vehicles a day, roughly 7% of them trucks, projected to reach 81,243 by 2042. The structure is 502 ft (153 m) long and 74 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI40
CrossesI40 Ll /Sr 840-RMP-NW&SE
LocationI40-SR840 in Dickson Co.
RouteInterstate 40
CountyDickson County
StateTennessee
Coordinates36.02225, -87.26598
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length502 ft (153 m)
Longest span249 ft (75.9 m)
Deck width74 ft (22.6 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50,777 (2021)
Projected traffic81,243 by 2042
Trucks7%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I40 over I40 Ll /Sr 840-RMP-NW&SE built?

It was built in 2000, making it 25 years old in 2025.

What condition is I40 over I40 Ll /Sr 840-RMP-NW&SE 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 April 2024.

How much traffic does I40 over I40 Ll /Sr 840-RMP-NW&SE carry?

About 50,777 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I40 over I40 Ll /Sr 840-RMP-NW&SE?

The structure is 502 ft (153 m) long with a longest span of 249 ft (75.9 m) and a deck 74 ft wide.

Who owns I40 over I40 Ll /Sr 840-RMP-NW&SE?

It is owned by the State Highway Agency.