US Bridges

I49 NB Mn LN Ramp over US 71B Mn Lns-Wash. Co.

Fair

Washington County, Arkansas · I49 & US 71B · Structure no. 000000000005916

Built
1984
41 years old
Condition
Fair
inspected December 2021
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
318 ft
4 main spans
Daily traffic
68,000
2018 count
Owner
State
State Highway Agency

About this bridge

I49 NB Mn LN Ramp over US 71B Mn Lns-Wash. Co. is a steel continuous stringer/multi-beam or girder carrying I49 NB Mn LN Ramp over US 71B Mn Lns-Wash. Co. in Washington County, Arkansas. It was built in 1984, so it is 41 years old, younger than the Arkansas average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 68,000 vehicles a day, roughly 12% of them trucks, projected to reach 67,500 by 2036. The structure is 318 ft (96.9 m) long and 43 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesI49 NB Mn LN Ramp
CrossesUS 71B Mn Lns-Wash. Co.
LocationI49 & US 71B
RouteInterstate 49
CountyWashington County
StateArkansas
Coordinates36.10907, -94.16969
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length318 ft (96.9 m)
Longest span93 ft (28.3 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic68,000 (2018)
Projected traffic67,500 by 2036
Trucks12%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I49 NB Mn LN Ramp over US 71B Mn Lns-Wash. Co. built?

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

What condition is I49 NB Mn LN Ramp over US 71B Mn Lns-Wash. Co. 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 December 2021.

How much traffic does I49 NB Mn LN Ramp over US 71B Mn Lns-Wash. Co. carry?

About 68,000 vehicles per day (2018 count), of which roughly 12% are trucks.

How long is I49 NB Mn LN Ramp over US 71B Mn Lns-Wash. Co.?

The structure is 318 ft (96.9 m) long with a longest span of 93 ft (28.3 m) and a deck 43 ft wide.

Who owns I49 NB Mn LN Ramp over US 71B Mn Lns-Wash. Co.?

It is owned by the State Highway Agency.