US Bridges

Union CR 51 Z-H over Ash Branch

Good

Union County, Arkansas · 0.1 MI W JCT SH 15 & CR51 · Structure no. 000000000004159

Built
1960
65 years old, rebuilt 2003
Condition
Good
inspected July 2023
Type
Channel Beam
Concrete
Length
38 ft
2 main spans
Daily traffic
229
2018 count
Owner
County
County Highway Agency

About this bridge

Union CR 51 Z-H over Ash Branch is a concrete channel beam carrying Union CR 51 Z-H over Ash Branch in Union County, Arkansas. It was built in 1960 and reconstructed in 2003, so it is 65 years old, older 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 229 vehicles a day, roughly 1% of them trucks, projected to reach 269 by 2007. The structure is 38 ft (11.6 m) long and 25 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesUnion CR 51 Z-H
CrossesAsh Branch
Location0.1 MI W JCT SH 15 & CR51
RouteCounty Highway 51
CountyUnion County
StateArkansas
Coordinates33.09472, -92.85494
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating41 US tons
Inventory rating24 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadH 15
Structure length38 ft (11.6 m)
Longest span19 ft (5.8 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic229 (2018)
Projected traffic269 by 2007
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$43,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Union CR 51 Z-H over Ash Branch built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2003.

What condition is Union CR 51 Z-H over Ash Branch 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 July 2023.

How much traffic does Union CR 51 Z-H over Ash Branch carry?

About 229 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Union CR 51 Z-H over Ash Branch?

The structure is 38 ft (11.6 m) long with a longest span of 19 ft (5.8 m) and a deck 25 ft wide.

Who owns Union CR 51 Z-H over Ash Branch?

It is owned by the County Highway Agency.