US Bridges

Old RTE 60 over Jam UP CR

FairPosted for load

Shannon County, Missouri · S 19 T 27 N R 6 W · Structure no. 17800

Built
1925
100 years old
Condition
Fair
inspected January 2025
Type
Tee Beam
Concrete
Length
98 ft
3 main spans
Daily traffic
100
2023 count
Owner
County
County Highway Agency

About this bridge

Old RTE 60 over Jam UP CR is a concrete tee beam carrying Old RTE 60 over Jam UP CR in Shannon County, Missouri. It was built in 1925, so it is 100 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. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 10% of them trucks, projected to reach 120 by 2043. The structure is 98 ft (29.9 m) long and 23 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesOld RTE 60
CrossesJam UP CR
LocationS 19 T 27 N R 6 W
RouteCounty Highway 163
CountyShannon County
StateMissouri
Coordinates36.9926, -91.6467
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating21.8 US tons
Inventory rating9.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length98 ft (29.9 m)
Longest span32 ft (9.7 m)
Deck width23 ft (6.9 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic120 by 2043
Trucks10%
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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$710,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Old RTE 60 over Jam UP CR built?

It was built in 1925, making it 100 years old in 2025.

What condition is Old RTE 60 over Jam UP 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 2025.

How much traffic does Old RTE 60 over Jam UP CR carry?

About 100 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Old RTE 60 over Jam UP CR?

The structure is 98 ft (29.9 m) long with a longest span of 32 ft (9.7 m) and a deck 23 ft wide.

Who owns Old RTE 60 over Jam UP CR?

It is owned by the County Highway Agency.