US Bridges

Mo 15 S over Norwegian CR

Fair

Knox County, Missouri · S 36 T 61 N R 12 W · Structure no. 4885

Built
1925
100 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
754
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 15 S over Norwegian CR is a concrete continuous culvert carrying Mo 15 S over Norwegian CR in Knox 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 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 754 vehicles a day, roughly 14% of them trucks, projected to reach 1,169 by 2044. The structure is 25 ft (7.6 m) long and 36 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

Location

Open in Google Maps
CarriesMo 15 S
CrossesNorwegian CR
LocationS 36 T 61 N R 12 W
RouteState Highway 15
CountyKnox County
StateMissouri
Coordinates40.04332, -92.17486
Functional classRural Minor Arterial

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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99.2 US tons
Inventory rating59.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width36 ft (10.9 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic754 (2024)
Projected traffic1,169 by 2044
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 15 S over Norwegian CR built?

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

What condition is Mo 15 S over Norwegian 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 November 2023.

How much traffic does Mo 15 S over Norwegian CR carry?

About 754 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is Mo 15 S over Norwegian CR?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 36 ft wide.

Who owns Mo 15 S over Norwegian CR?

It is owned by the State Highway Agency.