US Bridges

John Emling RD over Mill CR

Good

Washington County, Missouri · S 35 T 36 N R 3 E · Structure no. 15317

Built
1960
65 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
60
2024 count
Owner
County
County Highway Agency

About this bridge

John Emling RD over Mill CR is a concrete culvert carrying John Emling RD over Mill CR in Washington County, Missouri. It was built in 1960, so it is 65 years old, older 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 60 vehicles a day, roughly 10% of them trucks, projected to reach 72 by 2044. The structure is 24 ft (7.3 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesJohn Emling RD
CrossesMill CR
LocationS 35 T 36 N R 3 E
RouteCounty Highway 90
Coordinates37.7837, -90.6687
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length24 ft (7.3 m)
Longest span11 ft (3.4 m)
Deck width23 ft (7.1 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2024)
Projected traffic72 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 John Emling RD over Mill CR built?

It was built in 1960, making it 65 years old in 2025.

What condition is John Emling RD 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 John Emling RD over Mill CR carry?

About 60 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is John Emling RD over Mill CR?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m) and a deck 23 ft wide.

Who owns John Emling RD over Mill CR?

It is owned by the County Highway Agency.