US Bridges

CR 546 - B over Mayo Ditch

Good

Clay County, Arkansas · 1.8 E SH 139 · Structure no. 000000000004276

Built
1975
50 years old
Condition
Good
inspected February 2025
Type
Channel Beam
Concrete
Length
69 ft
3 main spans
Daily traffic
213
2018 count
Owner
County
County Highway Agency

About this bridge

CR 546 - B over Mayo Ditch is a concrete channel beam carrying CR 546 - B over Mayo Ditch in Clay County, Arkansas. It was built in 1975, so it is 50 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 213 vehicles a day, roughly 1% of them trucks, projected to reach 124 by 2007. The structure is 69 ft (21 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR 546 - B
CrossesMayo Ditch
Location1.8 E SH 139
RouteCounty Highway 546
Coordinates36.34536, -90.12475
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating27 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 15
Structure length69 ft (21 m)
Longest span31 ft (9.4 m)
Deck width27 ft (8.2 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic213 (2018)
Projected traffic124 by 2007
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 CR 546 - B over Mayo Ditch built?

It was built in 1975, making it 50 years old in 2025.

What condition is CR 546 - B over Mayo Ditch 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 February 2025.

How much traffic does CR 546 - B over Mayo Ditch carry?

About 213 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is CR 546 - B over Mayo Ditch?

The structure is 69 ft (21 m) long with a longest span of 31 ft (9.4 m) and a deck 27 ft wide.

Who owns CR 546 - B over Mayo Ditch?

It is owned by the County Highway Agency.