US Bridges

Mill Pond RD over Trib of Praire Fk

Fair

Montgomery County, Missouri · S 21 T 47 N R 6 W · Structure no. 20981

Built
1993
32 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
49 ft
1 main span
Daily traffic
75
2023 count
Owner
County
County Highway Agency

About this bridge

Mill Pond RD over Trib of Praire Fk is a steel stringer/multi-beam or girder carrying Mill Pond RD over Trib of Praire Fk in Montgomery County, Missouri. It was built in 1993, so it is 32 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 75 vehicles a day, roughly 10% of them trucks, projected to reach 94 by 2043. The structure is 49 ft (14.9 m) long and 24 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesMill Pond RD
CrossesTrib of Praire Fk
LocationS 21 T 47 N R 6 W
RouteCounty Highway 283
Coordinates38.8335, -91.58744
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length49 ft (14.9 m)
Longest span48 ft (14.6 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2023)
Projected traffic94 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Pond RD over Trib of Praire Fk built?

It was built in 1993, making it 32 years old in 2025.

What condition is Mill Pond RD over Trib of Praire Fk 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 2023.

How much traffic does Mill Pond RD over Trib of Praire Fk carry?

About 75 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Mill Pond RD over Trib of Praire Fk?

The structure is 49 ft (14.9 m) long with a longest span of 48 ft (14.6 m) and a deck 24 ft wide.

Who owns Mill Pond RD over Trib of Praire Fk?

It is owned by the County Highway Agency.