US Bridges

Wyandotte St. over Mound Bayou

Good

Bolivar County, Mississippi · Sec 19 T24N R 5W · Structure no. SA0600000000245

Built
1999
26 years old
Condition
Good
inspected February 2024
Type
Channel Beam
Concrete
Length
31 ft
1 main span
Daily traffic
350
2024 count
Owner
County
County Highway Agency

About this bridge

Wyandotte St. over Mound Bayou is a concrete channel beam carrying Wyandotte St. over Mound Bayou in Bolivar County, Mississippi. It was built in 1999, so it is 26 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 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 350 vehicles a day, roughly 8% of them trucks, projected to reach 525 by 2044. The structure is 31 ft (9.4 m) long and 25 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesWyandotte St.
CrossesMound Bayou
LocationSec 19 T24N R 5W
RouteCity Street 151
Coordinates33.90869, -90.74947
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.5 US tons
Inventory rating44.6 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span31 ft (9.4 m)
Deck width25 ft (7.5 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2024)
Projected traffic525 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Wyandotte St. over Mound Bayou built?

It was built in 1999, making it 26 years old in 2025.

What condition is Wyandotte St. over Mound Bayou 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 February 2024.

How much traffic does Wyandotte St. over Mound Bayou carry?

About 350 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Wyandotte St. over Mound Bayou?

The structure is 31 ft (9.4 m) long with a longest span of 31 ft (9.4 m) and a deck 25 ft wide.

Who owns Wyandotte St. over Mound Bayou?

It is owned by the County Highway Agency.