US Bridges

N Indiana over Mill CR

Good

Clay County, Missouri · S 31 T 51 N R 32 W · Structure no. 34809

Built
2012
13 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
54 ft
1 main span
Daily traffic
2,446
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

N Indiana over Mill CR is a concrete culvert carrying N Indiana over Mill CR in Clay 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,446 vehicles a day, roughly 5% of them trucks, projected to reach 3,914 by 2044. The structure is 54 ft (16.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesN Indiana
CrossesMill CR
LocationS 31 T 51 N R 32 W
RouteCity Street 0
Coordinates39.19364, -94.53961
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length54 ft (16.5 m)
Longest span54 ft (16.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,446 (2024)
Projected traffic3,914 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 N Indiana over Mill CR built?

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

What condition is N Indiana 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 April 2024.

How much traffic does N Indiana over Mill CR carry?

About 2,446 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is N Indiana over Mill CR?

The structure is 54 ft (16.5 m) long with a longest span of 54 ft (16.5 m).

Who owns N Indiana over Mill CR?

It is owned by the City or Municipal Highway Agency.