US Bridges

CR 3451 over Rock Creek

Fair

Johnson County, Arkansas · 4.72 M N CR77 & SH103 · Structure no. 000000000014370

Built
1930
95 years old, rebuilt 1970
Condition
Fair
inspected February 2025
Type
Channel Beam
Concrete
Length
45 ft
2 main spans
Daily traffic
904
2018 count
Owner
County
County Highway Agency

About this bridge

CR 3451 over Rock Creek is a concrete channel beam carrying CR 3451 over Rock Creek in Johnson County, Arkansas. It was built in 1930 and reconstructed in 1970, 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 904 vehicles a day, roughly 1% of them trucks, projected to reach 182 by 2007. The structure is 45 ft (13.7 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCR 3451
CrossesRock Creek
Location4.72 M N CR77 & SH103
RouteCounty Highway 77
CountyJohnson County
StateArkansas
Coordinates35.54167, -93.48153
Functional classRural Minor Collector

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 protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating39 US tons
Inventory rating24 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadUnknown
Structure length45 ft (13.7 m)
Longest span26 ft (7.9 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic904 (2018)
Projected traffic182 by 2007
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$236,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 3451 over Rock Creek built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1970.

What condition is CR 3451 over Rock Creek 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 February 2025.

How much traffic does CR 3451 over Rock Creek carry?

About 904 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is CR 3451 over Rock Creek?

The structure is 45 ft (13.7 m) long with a longest span of 26 ft (7.9 m) and a deck 28 ft wide.

Who owns CR 3451 over Rock Creek?

It is owned by the County Highway Agency.