US Bridges

US-70/SEC-20/L8.21 over Unnamed Creek

Fair

Crittenden County, Arkansas · 2.2 MI E JCT US 70 &SH147 · Structure no. 0000000000M1338

Built
1948
77 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
4,600
2018 count
Owner
State
State Highway Agency

About this bridge

US-70/SEC-20/L8.21 over Unnamed Creek is a concrete culvert carrying US-70/SEC-20/L8.21 over Unnamed Creek in Crittenden County, Arkansas. It was built in 1948, so it is 77 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 4,600 vehicles a day, roughly 13% of them trucks, projected to reach 5,438 by 2028. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS-70/SEC-20/L8.21
CrossesUnnamed Creek
Location2.2 MI E JCT US 70 &SH147
RouteU.S. Route 70
CountyCrittenden County
StateArkansas
Coordinates35.147, -90.25562
Functional classUrban 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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: 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 rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 20
Structure length26 ft (7.9 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,600 (2018)
Projected traffic5,438 by 2028
Trucks13%
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

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 US-70/SEC-20/L8.21 over Unnamed Creek built?

It was built in 1948, making it 77 years old in 2025.

What condition is US-70/SEC-20/L8.21 over Unnamed 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 2024.

How much traffic does US-70/SEC-20/L8.21 over Unnamed Creek carry?

About 4,600 vehicles per day (2018 count), of which roughly 13% are trucks.

How long is US-70/SEC-20/L8.21 over Unnamed Creek?

The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.4 m).

Who owns US-70/SEC-20/L8.21 over Unnamed Creek?

It is owned by the State Highway Agency.