US Bridges

Boettcher RD over Rock CR

Good

Gasconade County, Missouri · S 32 T 42 N R 6 W · Structure no. 16095

Built
1997
28 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
51 ft
3 main spans
Daily traffic
100
2024 count
Owner
County
County Highway Agency

About this bridge

Boettcher RD over Rock CR is a concrete culvert carrying Boettcher RD over Rock CR in Gasconade County, Missouri. It was built in 1997, so it is 28 years old, younger 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 120 by 2044. The structure is 51 ft (15.5 m) long and 28 ft wide. If it were closed, the detour would be 37.3 mi (60 km).

CarriesBoettcher RD
CrossesRock CR
LocationS 32 T 42 N R 6 W
RouteCounty Highway 110
Coordinates38.34153, -91.61653
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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.5 US tons
Inventory rating38.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span16 ft (4.9 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2024)
Projected traffic120 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.3 mi (60 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 Boettcher RD over Rock CR built?

It was built in 1997, making it 28 years old in 2025.

What condition is Boettcher RD over Rock 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 March 2024.

How much traffic does Boettcher RD over Rock CR carry?

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

How long is Boettcher RD over Rock CR?

The structure is 51 ft (15.5 m) long with a longest span of 16 ft (4.9 m) and a deck 28 ft wide.

Who owns Boettcher RD over Rock CR?

It is owned by the County Highway Agency.