US Bridges

Rt Nn S over US 60

Good

Butler County, Missouri · S 25 T 25 N R 6 E · Structure no. 3094

Built
1984
41 years old
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
276 ft
2 main spans
Daily traffic
801
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Nn S over US 60 is a steel continuous stringer/multi-beam or girder carrying Rt Nn S over US 60 in Butler County, Missouri. It was built in 1984, so it is 41 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 801 vehicles a day, roughly 12% of them trucks, projected to reach 1,202 by 2044. The structure is 276 ft (84.1 m) long and 37 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesRt Nn S
CrossesUS 60
LocationS 25 T 25 N R 6 E
RouteState Highway 0NN
Coordinates36.79467, -90.35622
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.5 US tons
Inventory rating39.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length276 ft (84.1 m)
Longest span117 ft (35.6 m)
Deck width37 ft (11.2 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic801 (2024)
Projected traffic1,202 by 2044
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Rt Nn S over US 60 built?

It was built in 1984, making it 41 years old in 2025.

What condition is Rt Nn S over US 60 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2025.

How much traffic does Rt Nn S over US 60 carry?

About 801 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Rt Nn S over US 60?

The structure is 276 ft (84.1 m) long with a longest span of 117 ft (35.6 m) and a deck 37 ft wide.

Who owns Rt Nn S over US 60?

It is owned by the State Highway Agency.