US Bridges

Union CR 18 Zone E over Salt Creek

Fair

Union County, Arkansas · 1.68 MI NW JCT US 167 · Structure no. 000000000004358

Built
1978
47 years old
Condition
Fair
inspected November 2024
Type
Channel Beam
Concrete
Length
124 ft
4 main spans
Daily traffic
635
2018 count
Owner
County
County Highway Agency

About this bridge

Union CR 18 Zone E over Salt Creek is a concrete channel beam carrying Union CR 18 Zone E over Salt Creek in Union County, Arkansas. It was built in 1978, so it is 47 years old, older 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.

It carries about 635 vehicles a day, roughly 1% of them trucks, projected to reach 159 by 2007. The structure is 124 ft (37.8 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUnion CR 18 Zone E
CrossesSalt Creek
Location1.68 MI NW JCT US 167
RouteCounty Highway 18
Coordinates33.30449, -92.62465
Functional classRural Minor Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadH 15
Structure length124 ft (37.8 m)
Longest span31 ft (9.4 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic635 (2018)
Projected traffic159 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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Union CR 18 Zone E over Salt Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is Union CR 18 Zone E over Salt 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 November 2024.

How much traffic does Union CR 18 Zone E over Salt Creek carry?

About 635 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Union CR 18 Zone E over Salt Creek?

The structure is 124 ft (37.8 m) long with a longest span of 31 ft (9.4 m) and a deck 26 ft wide.

Who owns Union CR 18 Zone E over Salt Creek?

It is owned by the County Highway Agency.