US Bridges

Mo 3 S over US 36

Good

Macon County, Missouri · S 7 T 57 N R 15 W · Structure no. 29092

Built
2002
23 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
324 ft
4 main spans
Daily traffic
300
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 3 S over US 36 is a steel continuous stringer/multi-beam or girder carrying Mo 3 S over US 36 in Macon County, Missouri. It was built in 2002, so it is 23 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 300 vehicles a day, roughly 13% of them trucks, projected to reach 375 by 2044. The structure is 324 ft (98.8 m) long and 42 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesMo 3 S
CrossesUS 36
LocationS 7 T 57 N R 15 W
RouteState Highway 3
Coordinates39.75523, -92.62495
Functional classRural Major 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.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.4 US tons
Inventory rating41.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length324 ft (98.8 m)
Longest span110 ft (33.5 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2024)
Projected traffic375 by 2044
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 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 Mo 3 S over US 36 built?

It was built in 2002, making it 23 years old in 2025.

What condition is Mo 3 S over US 36 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 September 2023.

How much traffic does Mo 3 S over US 36 carry?

About 300 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is Mo 3 S over US 36?

The structure is 324 ft (98.8 m) long with a longest span of 110 ft (33.5 m) and a deck 42 ft wide.

Who owns Mo 3 S over US 36?

It is owned by the State Highway Agency.