US Bridges

Mission 66 over Kansas City Southern RR

Fair

Warren County, Mississippi · Sec 21 T16N R 3E · Structure no. SA7500000000046

Built
1967
58 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
140 ft
3 main spans
Daily traffic
10,540
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mission 66 over Kansas City Southern RR is a steel stringer/multi-beam or girder carrying Mission 66 over Kansas City Southern RR in Warren County, Mississippi. It was built in 1967, so it is 58 years old, older than the Mississippi average of 38.9 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 10,540 vehicles a day, roughly 8% of them trucks, projected to reach 14,100 by 2044. The structure is 140 ft (42.8 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMission 66
CrossesKansas City Southern RR
LocationSec 21 T16N R 3E
RouteCity Street 7124
CountyWarren County
StateMississippi
Coordinates32.34433, -90.86469
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.2 US tons
Inventory rating25.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length140 ft (42.8 m)
Longest span60 ft (18.3 m)
Deck width56 ft (17 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,540 (2022)
Projected traffic14,100 by 2044
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$1.7 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mission 66 over Kansas City Southern RR built?

It was built in 1967, making it 58 years old in 2025.

What condition is Mission 66 over Kansas City Southern RR 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 March 2024.

How much traffic does Mission 66 over Kansas City Southern RR carry?

About 10,540 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Mission 66 over Kansas City Southern RR?

The structure is 140 ft (42.8 m) long with a longest span of 60 ft (18.3 m) and a deck 56 ft wide.

Who owns Mission 66 over Kansas City Southern RR?

It is owned by the City or Municipal Highway Agency.