US Bridges

US-70/SEC-18/L6.12 over Big Creek

Fair

St. Francis County, Arkansas · 5.5 Miles East JCT SH 78 · Structure no. 000000000001535

Built
1930
95 years old
Condition
Fair
inspected January 2024
Type
Tee Beam
Concrete
Length
69 ft
2 main spans
Daily traffic
1,209
2018 count
Owner
State
State Highway Agency

About this bridge

US-70/SEC-18/L6.12 over Big Creek is a concrete tee beam carrying US-70/SEC-18/L6.12 over Big Creek in St. Francis County, Arkansas. It was built in 1930, 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 1,209 vehicles a day, roughly 1% of them trucks, projected to reach 1,210 by 2028. The structure is 69 ft (21 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesUS-70/SEC-18/L6.12
CrossesBig Creek
Location5.5 Miles East JCT SH 78
RouteU.S. Route 70
CountySt. Francis County
StateArkansas
Coordinates34.93983, -91.01557
Functional classRural Major 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length69 ft (21 m)
Longest span31 ft (9.6 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,209 (2018)
Projected traffic1,210 by 2028
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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-18/L6.12 over Big Creek built?

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

What condition is US-70/SEC-18/L6.12 over Big 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 January 2024.

How much traffic does US-70/SEC-18/L6.12 over Big Creek carry?

About 1,209 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is US-70/SEC-18/L6.12 over Big Creek?

The structure is 69 ft (21 m) long with a longest span of 31 ft (9.6 m) and a deck 30 ft wide.

Who owns US-70/SEC-18/L6.12 over Big Creek?

It is owned by the State Highway Agency.