US Bridges

Bu 61 S over KCS RR

Fair

Pike County, Missouri · S 23 T 53 N R 3 W · Structure no. 5502

Built
1931
94 years old, rebuilt 1991
Condition
Fair
inspected December 2024
Type
Tee Beam
Concrete
Length
143 ft
3 main spans
Daily traffic
5,724
2024 count
Owner
State
State Highway Agency

About this bridge

Bu 61 S over KCS RR is a concrete tee beam carrying Bu 61 S over KCS RR in Pike County, Missouri. It was built in 1931 and reconstructed in 1991, so it is 94 years old, older than the Missouri 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 5 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 5,724 vehicles a day, roughly 5% of them trucks, projected to reach 8,872 by 2044. The structure is 143 ft (43.6 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesBu 61 S
CrossesKCS RR
LocationS 23 T 53 N R 3 W
RouteState Highway 61
CountyPike County
StateMissouri
Coordinates39.34601, -91.20441
Functional classRural 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 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 rating46.6 US tons
Inventory rating27.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length143 ft (43.6 m)
Longest span48 ft (14.5 m)
Deck width27 ft (8.2 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,724 (2024)
Projected traffic8,872 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Bu 61 S over KCS RR built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1991.

What condition is Bu 61 S over KCS 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 December 2024.

How much traffic does Bu 61 S over KCS RR carry?

About 5,724 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Bu 61 S over KCS RR?

The structure is 143 ft (43.6 m) long with a longest span of 48 ft (14.5 m) and a deck 27 ft wide.

Who owns Bu 61 S over KCS RR?

It is owned by the State Highway Agency.