US Bridges

Calhoun CORD306 Zc over Blackwater Lakes

Good

Calhoun County, Arkansas · 0.5 MI East CR 3 & 306 · Structure no. 000000000023715

Built
2015
10 years old
Condition
Good
inspected June 2023
Type
Channel Beam
Concrete
Length
65 ft
2 main spans
Daily traffic
46
2018 count
Owner
County
County Highway Agency

About this bridge

Calhoun CORD306 Zc over Blackwater Lakes is a concrete channel beam carrying Calhoun CORD306 Zc over Blackwater Lakes in Calhoun County, Arkansas. It was built in 2015, so it is 10 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 46 vehicles a day, roughly 1% of them trucks, projected to reach 29 by 2032. The structure is 65 ft (19.7 m) long and 16 ft wide. If it were closed, the detour would be 124.3 mi (200 km).

Location

Open in Google Maps
CarriesCalhoun CORD306 Zc
CrossesBlackwater Lakes
Location0.5 MI East CR 3 & 306
RouteCounty Highway 306
CountyCalhoun County
StateArkansas
Coordinates33.46309, -92.67012
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
Deck7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadUnknown
Structure length65 ft (19.7 m)
Longest span31 ft (9.4 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic46 (2018)
Projected traffic29 by 2032
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed124.3 mi (200 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 Calhoun CORD306 Zc over Blackwater Lakes built?

It was built in 2015, making it 10 years old in 2025.

What condition is Calhoun CORD306 Zc over Blackwater Lakes 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 Calhoun CORD306 Zc over Blackwater Lakes carry?

About 46 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Calhoun CORD306 Zc over Blackwater Lakes?

The structure is 65 ft (19.7 m) long with a longest span of 31 ft (9.4 m) and a deck 16 ft wide.

Who owns Calhoun CORD306 Zc over Blackwater Lakes?

It is owned by the County Highway Agency.