US Bridges

Rock House RD over Trib N Moreau CR

Fair

Cole County, Missouri · S 28 T 44 N R 14 W · Structure no. 13462

Built
1932
93 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
35
2024 count
Owner
County
County Highway Agency

About this bridge

Rock House RD over Trib N Moreau CR is a concrete culvert carrying Rock House RD over Trib N Moreau CR in Cole County, Missouri. It was built in 1932, so it is 93 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 35 vehicles a day, roughly 10% of them trucks, projected to reach 60 by 2044. The structure is 21 ft (6.4 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRock House RD
CrossesTrib N Moreau CR
LocationS 28 T 44 N R 14 W
RouteCounty Highway 39
CountyCole County
StateMissouri
Coordinates38.5302, -92.45549
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
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 geometry7: Better than present minimum criteria
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
DeckNot applicable
Main spans1
Design loadOther
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width33 ft (10 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2024)
Projected traffic60 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Rock House RD over Trib N Moreau CR built?

It was built in 1932, making it 93 years old in 2025.

What condition is Rock House RD over Trib N Moreau 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 October 2023.

How much traffic does Rock House RD over Trib N Moreau CR carry?

About 35 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Rock House RD over Trib N Moreau CR?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m) and a deck 33 ft wide.

Who owns Rock House RD over Trib N Moreau CR?

It is owned by the County Highway Agency.