US Bridges

Calhoun CR 20 over Kings Slough Relief

Good

Calhoun County, Arkansas · 1.25 Mi. South CR 29 · Structure no. 000000000024271

Built
2020
5 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
63 ft
1 main span
Daily traffic
668
2018 count
Owner
County
County Highway Agency

About this bridge

Calhoun CR 20 over Kings Slough Relief is a steel stringer/multi-beam or girder carrying Calhoun CR 20 over Kings Slough Relief in Calhoun County, Arkansas. It was built in 2020, so it is 5 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 668 vehicles a day, roughly 1% of them trucks. The structure is 63 ft (19.2 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCalhoun CR 20
CrossesKings Slough Relief
Location1.25 Mi. South CR 29
RouteCounty Highway 20
CountyCalhoun County
StateArkansas
Coordinates33.43543, -92.58526
Functional classRural Minor Collector

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length63 ft (19.2 m)
Longest span58 ft (17.7 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic668 (2018)
Projected traffic—
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Calhoun CR 20 over Kings Slough Relief built?

It was built in 2020, making it 5 years old in 2025.

What condition is Calhoun CR 20 over Kings Slough Relief 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 January 2025.

How much traffic does Calhoun CR 20 over Kings Slough Relief carry?

About 668 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Calhoun CR 20 over Kings Slough Relief?

The structure is 63 ft (19.2 m) long with a longest span of 58 ft (17.7 m) and a deck 20 ft wide.

Who owns Calhoun CR 20 over Kings Slough Relief?

It is owned by the County Highway Agency.