US Bridges

SH 13 Lm 8.70 over Big Ditch

Good

Lonoke County, Arkansas · 4 MI N of Humnoke · Structure no. 0000000000X1099

Built
2002
23 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
58 ft
4 main spans
Daily traffic
920
2018 count
Owner
State
State Highway Agency

About this bridge

SH 13 Lm 8.70 over Big Ditch is a concrete culvert carrying SH 13 Lm 8.70 over Big Ditch in Lonoke County, Arkansas. It was built in 2002, so it is 23 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 920 vehicles a day, roughly 1% of them trucks, projected to reach 967 by 2028. The structure is 58 ft (17.7 m) long. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesSH 13 Lm 8.70
CrossesBig Ditch
Location4 MI N of Humnoke
RouteState Highway 13
CountyLonoke County
StateArkansas
Coordinates34.60006, -91.75602
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 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 rating37 US tons
Inventory rating22 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 20
Structure length58 ft (17.7 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic920 (2018)
Projected traffic967 by 2028
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 13 Lm 8.70 over Big Ditch built?

It was built in 2002, making it 23 years old in 2025.

What condition is SH 13 Lm 8.70 over Big Ditch 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 September 2024.

How much traffic does SH 13 Lm 8.70 over Big Ditch carry?

About 920 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is SH 13 Lm 8.70 over Big Ditch?

The structure is 58 ft (17.7 m) long with a longest span of 14 ft (4.3 m).

Who owns SH 13 Lm 8.70 over Big Ditch?

It is owned by the State Highway Agency.