US Bridges

US 60 E over Seamam CR

Fair

Shannon County, Missouri · S 20 T 27 N R 3 W · Structure no. 1893

Built
1967
58 years old, rebuilt 2007
Condition
Fair
inspected December 2024
Type
Culvert
Concrete Continuous
Length
40 ft
3 main spans
Daily traffic
4,202
2024 count
Owner
State
State Highway Agency

About this bridge

US 60 E over Seamam CR is a concrete continuous culvert carrying US 60 E over Seamam CR in Shannon County, Missouri. It was built in 1967 and reconstructed in 2007, so it is 58 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 4,202 vehicles a day, roughly 39% of them trucks, projected to reach 7,984 by 2044. The structure is 40 ft (12.3 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 60 E
CrossesSeamam CR
LocationS 20 T 27 N R 3 W
RouteU.S. Route 60
CountyShannon County
StateMissouri
Coordinates36.98858, -91.29519
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.4 US tons
Inventory rating47.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 20
Structure length40 ft (12.3 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,202 (2024)
Projected traffic7,984 by 2044
Trucks39%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 60 E over Seamam CR built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2007.

What condition is US 60 E over Seamam 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 December 2024.

How much traffic does US 60 E over Seamam CR carry?

About 4,202 vehicles per day (2024 count), of which roughly 39% are trucks.

How long is US 60 E over Seamam CR?

The structure is 40 ft (12.3 m) long with a longest span of 12 ft (3.7 m).

Who owns US 60 E over Seamam CR?

It is owned by the State Highway Agency.