US Bridges

CR N599 - D over Ditch No. 31

Good

Mississippi County, Arkansas · 1.5 MI N JCT SH 158 & CR · Structure no. 000000000004318

Built
1976
49 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete
Length
105 ft
3 main spans
Daily traffic
29
2018 count
Owner
County
County Highway Agency

About this bridge

CR N599 - D over Ditch No. 31 is a concrete slab carrying CR N599 - D over Ditch No. 31 in Mississippi County, Arkansas. It was built in 1976, so it is 49 years old, older 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 29 vehicles a day, roughly 1% of them trucks, projected to reach 238 by 2007. The structure is 105 ft (32 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCR N599 - D
CrossesDitch No. 31
Location1.5 MI N JCT SH 158 & CR
RouteCounty Highway 0N599
Coordinates35.7779, -89.96356
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length105 ft (32 m)
Longest span35 ft (10.7 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29 (2018)
Projected traffic238 by 2007
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR N599 - D over Ditch No. 31 built?

It was built in 1976, making it 49 years old in 2025.

What condition is CR N599 - D over Ditch No. 31 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 August 2024.

How much traffic does CR N599 - D over Ditch No. 31 carry?

About 29 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is CR N599 - D over Ditch No. 31?

The structure is 105 ft (32 m) long with a longest span of 35 ft (10.7 m) and a deck 31 ft wide.

Who owns CR N599 - D over Ditch No. 31?

It is owned by the County Highway Agency.