US Bridges

CO RD 109 Zone C over Ouachita River - Polk CO

PoorPosted for load

Polk County, Arkansas · Acorn · Structure no. 000000000016218

Built
1929
96 years old
Condition
Poor
inspected August 2024
Type
Truss - Thru
Steel
Length
133 ft
1 main span
Daily traffic
40
2018 count
Owner
County
County Highway Agency

About this bridge

CO RD 109 Zone C over Ouachita River - Polk CO is a steel truss - thru carrying CO RD 109 Zone C over Ouachita River - Polk CO in Polk County, Arkansas. It was built in 1929, so it is 96 years old, older 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 40 vehicles a day, roughly 1% of them trucks, projected to reach 25 by 2007. The structure is 133 ft (40.5 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCO RD 109 Zone C
CrossesOuachita River - Polk CO
LocationAcorn
RouteCounty Highway 109
Coordinates34.64378, -94.19935
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating17 US tons
Inventory rating11 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadH 15
Structure length133 ft (40.5 m)
Longest span73 ft (22.3 m)
Deck width24 ft (7.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2018)
Projected traffic25 by 2007
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$368,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CO RD 109 Zone C over Ouachita River - Polk CO built?

It was built in 1929, making it 96 years old in 2025.

What condition is CO RD 109 Zone C over Ouachita River - Polk CO 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 August 2024.

How much traffic does CO RD 109 Zone C over Ouachita River - Polk CO carry?

About 40 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is CO RD 109 Zone C over Ouachita River - Polk CO?

The structure is 133 ft (40.5 m) long with a longest span of 73 ft (22.3 m) and a deck 24 ft wide.

Who owns CO RD 109 Zone C over Ouachita River - Polk CO?

It is owned by the County Highway Agency.