US Bridges

US.70 Sec. 03-4.12 over Black Fork Ditch

Fair

Howard County, Arkansas · SW City Limits Dierks · Structure no. 0000000000M1306

Built
1930
95 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
3,771
2018 count
Owner
State
State Highway Agency

About this bridge

US.70 Sec. 03-4.12 over Black Fork Ditch is a concrete culvert carrying US.70 Sec. 03-4.12 over Black Fork Ditch in Howard County, Arkansas. It was built in 1930, so it is 95 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 3,771 vehicles a day, roughly 1% of them trucks, projected to reach 5,910 by 2028. The structure is 22 ft (6.7 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesUS.70 Sec. 03-4.12
CrossesBlack Fork Ditch
LocationSW City Limits Dierks
RouteU.S. Route 70
CountyHoward County
StateArkansas
Coordinates34.11689, -94.01881
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating39 US tons
Inventory rating24 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,771 (2018)
Projected traffic5,910 by 2028
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US.70 Sec. 03-4.12 over Black Fork Ditch built?

It was built in 1930, making it 95 years old in 2025.

What condition is US.70 Sec. 03-4.12 over Black Fork Ditch 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 April 2023.

How much traffic does US.70 Sec. 03-4.12 over Black Fork Ditch carry?

About 3,771 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is US.70 Sec. 03-4.12 over Black Fork Ditch?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 34 ft wide.

Who owns US.70 Sec. 03-4.12 over Black Fork Ditch?

It is owned by the State Highway Agency.