US Bridges

CR 508 - a over Post Oak Creek

PoorPosted for load

Clay County, Arkansas · 1 MI S. of Rector · Structure no. 000000000021027

Built
1991
34 years old
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
1 main span
Daily traffic
312
2018 count
Owner
County
County Highway Agency

About this bridge

CR 508 - a over Post Oak Creek is a steel stringer/multi-beam or girder carrying CR 508 - a over Post Oak Creek in Clay County, Arkansas. It was built in 1991, so it is 34 years old, younger than the Arkansas average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 312 vehicles a day, roughly 1% of them trucks, projected to reach 169 by 2007. The structure is 60 ft (18.3 m) long and 16 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR 508 - a
CrossesPost Oak Creek
Location1 MI S. of Rector
RouteCounty Highway 508
Coordinates36.24454, -90.30222
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating32 US tons
Inventory rating19 US tons

Structure

MaterialSteel
DeckOther
Main spans1
Design loadUnknown
Structure length60 ft (18.3 m)
Longest span59 ft (18 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic312 (2018)
Projected traffic169 by 2007
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$278,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 508 - a over Post Oak Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is CR 508 - a over Post Oak Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does CR 508 - a over Post Oak Creek carry?

About 312 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is CR 508 - a over Post Oak Creek?

The structure is 60 ft (18.3 m) long with a longest span of 59 ft (18 m) and a deck 16 ft wide.

Who owns CR 508 - a over Post Oak Creek?

It is owned by the County Highway Agency.