US Bridges

SE 60th ST over Trib of Muddy CR

Fair

Grundy County, Missouri · S 20 T 60 N R 22 W · Structure no. 21245

Built
1930
95 years old, rebuilt 1987
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
39 ft
1 main span
Daily traffic
10
2024 count
Owner
County
County Highway Agency

About this bridge

SE 60th ST over Trib of Muddy CR is a steel stringer/multi-beam or girder carrying SE 60th ST over Trib of Muddy CR in Grundy County, Missouri. It was built in 1930 and reconstructed in 1987, so it is 95 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 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 vehicles a day, roughly 10% of them trucks, projected to reach 12 by 2044. The structure is 39 ft (11.9 m) long and 19 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSE 60th ST
CrossesTrib of Muddy CR
LocationS 20 T 60 N R 22 W
RouteCounty Highway 297
Coordinates39.99608, -93.39781
Functional classRural Local

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to 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 rating68.5 US tons
Inventory rating48.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length39 ft (11.9 m)
Longest span37 ft (11.3 m)
Deck width19 ft (5.9 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2024)
Projected traffic12 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 SE 60th ST over Trib of Muddy CR built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1987.

What condition is SE 60th ST over Trib of Muddy CR 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 January 2024.

How much traffic does SE 60th ST over Trib of Muddy CR carry?

About 10 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is SE 60th ST over Trib of Muddy CR?

The structure is 39 ft (11.9 m) long with a longest span of 37 ft (11.3 m) and a deck 19 ft wide.

Who owns SE 60th ST over Trib of Muddy CR?

It is owned by the County Highway Agency.