US Bridges

I-55 Frontage Rd-L over Ditch No 20

GoodPosted for load

Mississippi County, Arkansas · 1.66 MI So of SH 312 · Structure no. 0000000000C3286

Built
1962
63 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete
Length
90 ft
3 main spans
Daily traffic
432
2014 count
Owner
State
State Highway Agency

About this bridge

I-55 Frontage Rd-L over Ditch No 20 is a concrete slab carrying I-55 Frontage Rd-L over Ditch No 20 in Mississippi County, Arkansas. It was built in 1962, so it is 63 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. Its operating status is: posted for load restriction.

It carries about 432 vehicles a day, roughly 1% of them trucks, projected to reach 165 by 2028. The structure is 90 ft (27.4 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesI-55 Frontage Rd-L
CrossesDitch No 20
Location1.66 MI So of SH 312
RouteState Highway 55
CountyMississippi County
StateArkansas
Coordinates35.85046, -89.94713
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 statusPosted for load 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41 US tons
Inventory rating24 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic432 (2014)
Projected traffic165 by 2028
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I-55 Frontage Rd-L over Ditch No 20 built?

It was built in 1962, making it 63 years old in 2025.

What condition is I-55 Frontage Rd-L over Ditch No 20 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 I-55 Frontage Rd-L over Ditch No 20 carry?

About 432 vehicles per day (2014 count), of which roughly 1% are trucks.

How long is I-55 Frontage Rd-L over Ditch No 20?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns I-55 Frontage Rd-L over Ditch No 20?

It is owned by the State Highway Agency.