US Bridges

Mill Hill RD over Brush CR

Fair

Franklin County, Missouri · S 32 T 42 N R 1 E · Structure no. 20220

Built
1987
38 years old
Condition
Fair
inspected January 2025
Type
Culvert
Steel
Length
37 ft
4 main spans
Daily traffic
150
2023 count
Owner
County
County Highway Agency

About this bridge

Mill Hill RD over Brush CR is a steel culvert carrying Mill Hill RD over Brush CR in Franklin County, Missouri. It was built in 1987, so it is 38 years old, younger 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 150 vehicles a day, roughly 12% of them trucks, projected to reach 270 by 2043. The structure is 37 ft (11.3 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMill Hill RD
CrossesBrush CR
LocationS 32 T 42 N R 1 E
RouteCounty Highway 185
CountyFranklin County
StateMissouri
Coordinates38.34501, -90.94162
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadHS 15
Structure length37 ft (11.3 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2023)
Projected traffic270 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Mill Hill RD over Brush CR built?

It was built in 1987, making it 38 years old in 2025.

What condition is Mill Hill RD over Brush 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 January 2025.

How much traffic does Mill Hill RD over Brush CR carry?

About 150 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Mill Hill RD over Brush CR?

The structure is 37 ft (11.3 m) long with a longest span of 8 ft (2.4 m).

Who owns Mill Hill RD over Brush CR?

It is owned by the County Highway Agency.