US Bridges

Rt N S over Mill CR

Good

Laclede County, Missouri · S 5 T 34 N R 14 W · Structure no. 33903

Built
2012
13 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
160 ft
1 main span
Daily traffic
417
2024 count
Owner
State
State Highway Agency

About this bridge

Rt N S over Mill CR is a prestressed concrete box beam or girders - multiple carrying Rt N S over Mill CR in Laclede County, Missouri. It was built in 2012, so it is 13 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 417 vehicles a day, roughly 11% of them trucks, projected to reach 626 by 2044. The structure is 160 ft (48.8 m) long and 26 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesRt N S
CrossesMill CR
LocationS 5 T 34 N R 14 W
RouteState Highway 0N
Coordinates37.70337, -92.48592
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating38.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1 (+1 approach)
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span90 ft (27.4 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic417 (2024)
Projected traffic626 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rt N S over Mill CR built?

It was built in 2012, making it 13 years old in 2025.

What condition is Rt N S over Mill CR 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 August 2023.

How much traffic does Rt N S over Mill CR carry?

About 417 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Rt N S over Mill CR?

The structure is 160 ft (48.8 m) long with a longest span of 90 ft (27.4 m) and a deck 26 ft wide.

Who owns Rt N S over Mill CR?

It is owned by the State Highway Agency.