US Bridges

I 49 NB Lns over Blackburn Creek

Fair

Washington County, Arkansas · .5 MI N of Hopper Tunnel · Structure no. 0000000000B6479

Built
1997
28 years old
Condition
Fair
inspected April 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,512 ft
10 main spans
Daily traffic
10,500
2018 count
Owner
State
State Highway Agency

About this bridge

I 49 NB Lns over Blackburn Creek is a steel continuous stringer/multi-beam or girder carrying I 49 NB Lns over Blackburn Creek in Washington County, Arkansas. It was built in 1997, so it is 28 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 10,500 vehicles a day, roughly 26% of them trucks, projected to reach 11,955 by 2028. The structure is 1,512 ft (460.9 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 49 NB Lns
CrossesBlackburn Creek
Location.5 MI N of Hopper Tunnel
RouteInterstate 49
CountyWashington County
StateArkansas
Coordinates35.77775, -94.18627
Functional classRural 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
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 spans10
Design loadHS 20 + Mod
Structure length1,512 ft (460.9 m)
Longest span180 ft (54.9 m)
Deck width44 ft (13.5 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2018)
Projected traffic11,955 by 2028
Trucks26%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I 49 NB Lns over Blackburn Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is I 49 NB Lns over Blackburn Creek 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 2022.

How much traffic does I 49 NB Lns over Blackburn Creek carry?

About 10,500 vehicles per day (2018 count), of which roughly 26% are trucks.

How long is I 49 NB Lns over Blackburn Creek?

The structure is 1,512 ft (460.9 m) long with a longest span of 180 ft (54.9 m) and a deck 44 ft wide.

Who owns I 49 NB Lns over Blackburn Creek?

It is owned by the State Highway Agency.