US Bridges

Blackjack over Blackjack Branch

Fair

Hocking County, Ohio · 1.10 MI E of SR 664 · Structure no. 3731839

Built
1960
65 years old, rebuilt 2001
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
47 ft
1 main span
Daily traffic
477
2015 count
Owner
County
County Highway Agency

About this bridge

Blackjack over Blackjack Branch is a prestressed concrete box beam or girders - multiple carrying Blackjack over Blackjack Branch in Hocking County, Ohio. It was built in 1960 and reconstructed in 2001, so it is 65 years old, older than the Ohio average of 47.3 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 477 vehicles a day, roughly 8% of them trucks, projected to reach 662 by 2035. The structure is 47 ft (14.3 m) long and 24 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesBlackjack
CrossesBlackjack Branch
Location1.10 MI E of SR 664
RouteCounty Highway C0306
StateOhio
Coordinates39.47524, -82.50956
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating75 US tons
Inventory rating46.4 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20 + Mod
Structure length47 ft (14.3 m)
Longest span44 ft (13.4 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic477 (2015)
Projected traffic662 by 2035
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 Blackjack over Blackjack Branch built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2001.

What condition is Blackjack over Blackjack Branch 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 August 2024.

How much traffic does Blackjack over Blackjack Branch carry?

About 477 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Blackjack over Blackjack Branch?

The structure is 47 ft (14.3 m) long with a longest span of 44 ft (13.4 m) and a deck 24 ft wide.

Who owns Blackjack over Blackjack Branch?

It is owned by the County Highway Agency.