US Bridges

Ouachita CR178 Z-F over North Bayou

Good

Ouachita County, Arkansas · .9 MI N JCT CR 178 & SH 4 · Structure no. 000000000024187

Built
2021
4 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
58 ft
4 main spans
Daily traffic
23
2018 count
Owner
County
County Highway Agency

About this bridge

Ouachita CR178 Z-F over North Bayou is a steel stringer/multi-beam or girder carrying Ouachita CR178 Z-F over North Bayou in Ouachita County, Arkansas. It was built in 2021, so it is 4 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 23 vehicles a day, roughly 1% of them trucks, projected to reach 48 by 2038. The structure is 58 ft (17.7 m) long and 12 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesOuachita CR178 Z-F
CrossesNorth Bayou
Location.9 MI N JCT CR 178 & SH 4
RouteCounty Highway 178
CountyOuachita County
StateArkansas
Coordinates33.56997, -93.03075
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 alignment6: Equal to present minimum criteria
Operating rating32 US tons
Inventory rating19 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length58 ft (17.7 m)
Longest span15 ft (4.7 m)
Deck width12 ft (3.7 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23 (2018)
Projected traffic48 by 2038
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 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 Ouachita CR178 Z-F over North Bayou built?

It was built in 2021, making it 4 years old in 2025.

What condition is Ouachita CR178 Z-F over North Bayou 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 June 2023.

How much traffic does Ouachita CR178 Z-F over North Bayou carry?

About 23 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Ouachita CR178 Z-F over North Bayou?

The structure is 58 ft (17.7 m) long with a longest span of 15 ft (4.7 m) and a deck 12 ft wide.

Who owns Ouachita CR178 Z-F over North Bayou?

It is owned by the County Highway Agency.