US Bridges

SH 9 Izard County over East Fork Knob Cr.

Fair

Izard County, Arkansas · 0.1 M. S. SH56 · Structure no. 0000000000X1374

Built
2010
15 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
50 ft
4 main spans
Daily traffic
3,100
2018 count
Owner
State
State Highway Agency

About this bridge

SH 9 Izard County over East Fork Knob Cr. is a concrete culvert carrying SH 9 Izard County over East Fork Knob Cr. in Izard County, Arkansas. It was built in 2010, so it is 15 years old, younger 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 3,100 vehicles a day, roughly 10% of them trucks, projected to reach 3,200 by 2029. The structure is 50 ft (15.2 m) long. If it were closed, the detour would be 46 mi (74 km).

Location

Open in Google Maps
CarriesSH 9 Izard County
CrossesEast Fork Knob Cr.
Location0.1 M. S. SH56
RouteState Highway 9
CountyIzard County
StateArkansas
Coordinates36.14232, -91.92461
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating33 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20 + Mod
Structure length50 ft (15.2 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,100 (2018)
Projected traffic3,200 by 2029
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed46 mi (74 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 SH 9 Izard County over East Fork Knob Cr. built?

It was built in 2010, making it 15 years old in 2025.

What condition is SH 9 Izard County over East Fork Knob Cr. 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 December 2023.

How much traffic does SH 9 Izard County over East Fork Knob Cr. carry?

About 3,100 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is SH 9 Izard County over East Fork Knob Cr.?

The structure is 50 ft (15.2 m) long with a longest span of 11 ft (3.4 m).

Who owns SH 9 Izard County over East Fork Knob Cr.?

It is owned by the State Highway Agency.