US Bridges

I-49 NB Mn LN Ramp over US 71B Mn Lns - Wash Co.

Good

Washington County, Arkansas · I-49 & US 71B · Structure no. 0000000000B7380

Built
2017
8 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
311 ft
2 main spans
Daily traffic
3,500
2018 count
Owner
State
State Highway Agency

About this bridge

I-49 NB Mn LN Ramp over US 71B Mn Lns - Wash Co. is a steel continuous stringer/multi-beam or girder carrying I-49 NB Mn LN Ramp over US 71B Mn Lns - Wash Co. in Washington County, Arkansas. It was built in 2017, so it is 8 years old, younger than the Arkansas average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,500 vehicles a day, roughly 12% of them trucks, projected to reach 67,500 by 2036. The structure is 311 ft (94.9 m) long and 61 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesI-49 NB Mn LN Ramp
CrossesUS 71B Mn Lns - Wash Co.
LocationI-49 & US 71B
RouteInterstate 49
CountyWashington County
StateArkansas
Coordinates36.10895, -94.17003
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating53 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length311 ft (94.9 m)
Longest span153 ft (46.6 m)
Deck width61 ft (18.7 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,500 (2018)
Projected traffic67,500 by 2036
Trucks12%
Lanes on structure3
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 I-49 NB Mn LN Ramp over US 71B Mn Lns - Wash Co. built?

It was built in 2017, making it 8 years old in 2025.

What condition is I-49 NB Mn LN Ramp over US 71B Mn Lns - Wash Co. 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 December 2023.

How much traffic does I-49 NB Mn LN Ramp over US 71B Mn Lns - Wash Co. carry?

About 3,500 vehicles per day (2018 count), of which roughly 12% are trucks.

How long is I-49 NB Mn LN Ramp over US 71B Mn Lns - Wash Co.?

The structure is 311 ft (94.9 m) long with a longest span of 153 ft (46.6 m) and a deck 61 ft wide.

Who owns I-49 NB Mn LN Ramp over US 71B Mn Lns - Wash Co.?

It is owned by the State Highway Agency.