US Bridges

John Emling RD over Mill CR

Fair

Washington County, Missouri · S 35 T 36 N R 3 E · Structure no. 15239

Built
1940
85 years old, rebuilt 1990
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
53 ft
6 main spans
Daily traffic
100
2024 count
Owner
County
County Highway Agency

About this bridge

John Emling RD over Mill CR is a concrete continuous slab carrying John Emling RD over Mill CR in Washington County, Missouri. It was built in 1940 and reconstructed in 1990, so it is 85 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 5 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 120 by 2044. The structure is 53 ft (16.2 m) long and 12 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 89
Coordinates37.7963, -90.6624
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadOther
Structure length53 ft (16.2 m)
Longest span13 ft (4.1 m)
Deck width12 ft (3.8 m)
Roadway width12 ft (3.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2024)
Projected traffic120 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusHistorical significance not determinable at this time
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 1940, making it 85 years old in 2025. It was reconstructed in 1990.

What condition is John Emling RD over Mill 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 April 2024.

How much traffic does John Emling RD over Mill CR carry?

About 100 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is John Emling RD over Mill CR?

The structure is 53 ft (16.2 m) long with a longest span of 13 ft (4.1 m) and a deck 12 ft wide.

Who owns John Emling RD over Mill CR?

It is owned by the County Highway Agency.