US Bridges

SH 14-16- Lm 1.63 over National Ditch

Fair

Mississippi County, Arkansas · .4 MI W JCT of SH 77 · Structure no. 000000000006188

Built
1988
37 years old
Condition
Fair
inspected November 2021
Type
Stringer/Multi-beam or Girder
Steel
Length
182 ft
3 main spans
Daily traffic
1,100
2018 count
Owner
State
State Highway Agency

About this bridge

SH 14-16- Lm 1.63 over National Ditch is a steel stringer/multi-beam or girder carrying SH 14-16- Lm 1.63 over National Ditch in Mississippi County, Arkansas. It was built in 1988, so it is 37 years old, younger 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 1,100 vehicles a day, roughly 1% of them trucks, projected to reach 1,220 by 2028. The structure is 182 ft (55.6 m) long and 33 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesSH 14-16- Lm 1.63
CrossesNational Ditch
Location.4 MI W JCT of SH 77
RouteState Highway 14
CountyMississippi County
StateArkansas
Coordinates35.61229, -90.25783
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length182 ft (55.6 m)
Longest span60 ft (18.3 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2018)
Projected traffic1,220 by 2028
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 14-16- Lm 1.63 over National Ditch built?

It was built in 1988, making it 37 years old in 2025.

What condition is SH 14-16- Lm 1.63 over National Ditch 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 November 2021.

How much traffic does SH 14-16- Lm 1.63 over National Ditch carry?

About 1,100 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is SH 14-16- Lm 1.63 over National Ditch?

The structure is 182 ft (55.6 m) long with a longest span of 60 ft (18.3 m) and a deck 33 ft wide.

Who owns SH 14-16- Lm 1.63 over National Ditch?

It is owned by the State Highway Agency.