US Bridges

CR 15 Izard County over Knob Creek

Good

Izard County, Arkansas · 4.9 M. W of SH 9 · Structure no. 000000000004869

Built
2004
21 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
162 ft
3 main spans
Daily traffic
207
2018 count
Owner
County
County Highway Agency

About this bridge

CR 15 Izard County over Knob Creek is a steel stringer/multi-beam or girder carrying CR 15 Izard County over Knob Creek in Izard County, Arkansas. It was built in 2004, so it is 21 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 207 vehicles a day, roughly 10% of them trucks, projected to reach 104 by 2023. The structure is 162 ft (49.4 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCR 15 Izard County
CrossesKnob Creek
Location4.9 M. W of SH 9
RouteCounty Highway 15
CountyIzard County
StateArkansas
Coordinates36.08249, -91.98502
Functional classRural Minor Collector

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 inspectionJuly 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length162 ft (49.4 m)
Longest span60 ft (18.3 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic207 (2018)
Projected traffic104 by 2023
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 CR 15 Izard County over Knob Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is CR 15 Izard County over Knob Creek 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 July 2024.

How much traffic does CR 15 Izard County over Knob Creek carry?

About 207 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is CR 15 Izard County over Knob Creek?

The structure is 162 ft (49.4 m) long with a longest span of 60 ft (18.3 m) and a deck 27 ft wide.

Who owns CR 15 Izard County over Knob Creek?

It is owned by the County Highway Agency.