US Bridges

Rt Y S over Detmold Br

Fair

Franklin County, Missouri · S 20 T 44 N R 3 W · Structure no. 9686

Built
1948
77 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
20 ft
2 main spans
Daily traffic
644
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Y S over Detmold Br is a concrete continuous culvert carrying Rt Y S over Detmold Br in Franklin County, Missouri. It was built in 1948, so it is 77 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 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 644 vehicles a day, roughly 7% of them trucks, projected to reach 1,224 by 2044. The structure is 20 ft (6.1 m) long and 26 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesRt Y S
CrossesDetmold Br
LocationS 20 T 44 N R 3 W
RouteState Highway 0Y
CountyFranklin County
StateMissouri
Coordinates38.54101, -91.29061
Functional classRural Minor Collector

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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.6 US tons
Inventory rating27.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 10
Structure length20 ft (6.1 m)
Longest span8 ft (2.4 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic644 (2024)
Projected traffic1,224 by 2044
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Rt Y S over Detmold Br built?

It was built in 1948, making it 77 years old in 2025.

What condition is Rt Y S over Detmold Br 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 December 2023.

How much traffic does Rt Y S over Detmold Br carry?

About 644 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Rt Y S over Detmold Br?

The structure is 20 ft (6.1 m) long with a longest span of 8 ft (2.4 m) and a deck 26 ft wide.

Who owns Rt Y S over Detmold Br?

It is owned by the State Highway Agency.