US Bridges

Johnson RD over Sunflower River

Good

Coahoma County, Mississippi · Sec 17 T25N R 4W B · Structure no. SA140000000A017

Built
2020
5 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
313 ft
5 main spans
Daily traffic
70
2023 count
Owner
County
County Highway Agency

About this bridge

Johnson RD over Sunflower River is a prestressed concrete stringer/multi-beam or girder carrying Johnson RD over Sunflower River in Coahoma County, Mississippi. It was built in 2020, so it is 5 years old, younger than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 70 vehicles a day, roughly 8% of them trucks, projected to reach 98 by 2043. The structure is 313 ft (95.5 m) long and 33 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesJohnson RD
CrossesSunflower River
LocationSec 17 T25N R 4W B
RouteCounty Highway 1609
Coordinates34.04216, -90.62632
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
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.2 US tons
Inventory rating41.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length313 ft (95.5 m)
Longest span110 ft (33.5 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2023)
Projected traffic98 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$1.8 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Johnson RD over Sunflower River built?

It was built in 2020, making it 5 years old in 2025.

What condition is Johnson RD over Sunflower River 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 Johnson RD over Sunflower River carry?

About 70 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Johnson RD over Sunflower River?

The structure is 313 ft (95.5 m) long with a longest span of 110 ft (33.5 m) and a deck 33 ft wide.

Who owns Johnson RD over Sunflower River?

It is owned by the County Highway Agency.