US Bridges

CR 408 - H over Johnson Creek

FairPosted for load

Clay County, Arkansas · 0.5 MI NW of Knob · Structure no. 000000000021471

Built
1994
31 years old, rebuilt 1999
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
61 ft
1 main span
Daily traffic
169
2018 count
Owner
County
County Highway Agency

About this bridge

CR 408 - H over Johnson Creek is a steel stringer/multi-beam or girder carrying CR 408 - H over Johnson Creek in Clay County, Arkansas. It was built in 1994 and reconstructed in 1999, so it is 31 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. Its operating status is: posted for load restriction.

It carries about 169 vehicles a day, roughly 1% of them trucks, projected to reach 110 by 2007. The structure is 61 ft (18.7 m) long and 20 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCR 408 - H
CrossesJohnson Creek
Location0.5 MI NW of Knob
RouteCounty Highway 408
CountyClay County
StateArkansas
Coordinates36.28802, -90.43771
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating27 US tons
Inventory rating16 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckOther
Main spans1
Design loadUnknown
Structure length61 ft (18.7 m)
Longest span58 ft (17.8 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic169 (2018)
Projected traffic110 by 2007
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 408 - H over Johnson Creek built?

It was built in 1994, making it 31 years old in 2025. It was reconstructed in 1999.

What condition is CR 408 - H over Johnson 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 2024.

How much traffic does CR 408 - H over Johnson Creek carry?

About 169 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is CR 408 - H over Johnson Creek?

The structure is 61 ft (18.7 m) long with a longest span of 58 ft (17.8 m) and a deck 20 ft wide.

Who owns CR 408 - H over Johnson Creek?

It is owned by the County Highway Agency.