US Bridges

Old Blackmon Ferry over Rocky Creek (city)

Good

Miller County, Arkansas · .5 MI S JCT US 71 · Structure no. 000000000004579

Built
1987
38 years old
Condition
Good
inspected December 2023
Type
Channel Beam
Concrete
Length
70 ft
4 main spans
Daily traffic
1,399
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Old Blackmon Ferry over Rocky Creek (city) is a concrete channel beam carrying Old Blackmon Ferry over Rocky Creek (city) in Miller County, Arkansas. It was built in 1987, so it is 38 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 1,399 vehicles a day, roughly 1% of them trucks, projected to reach 350 by 2007. The structure is 70 ft (21.3 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesOld Blackmon Ferry
CrossesRocky Creek (city)
Location.5 MI S JCT US 71
RouteCity Street 42377
Coordinates33.38407, -94.00934
Functional classUrban 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadH 20
Structure length70 ft (21.3 m)
Longest span19 ft (5.8 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,399 (2018)
Projected traffic350 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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Old Blackmon Ferry over Rocky Creek (city) built?

It was built in 1987, making it 38 years old in 2025.

What condition is Old Blackmon Ferry over Rocky Creek (city) 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 December 2023.

How much traffic does Old Blackmon Ferry over Rocky Creek (city) carry?

About 1,399 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Old Blackmon Ferry over Rocky Creek (city)?

The structure is 70 ft (21.3 m) long with a longest span of 19 ft (5.8 m) and a deck 25 ft wide.

Who owns Old Blackmon Ferry over Rocky Creek (city)?

It is owned by the City or Municipal Highway Agency.