US Bridges

CR 430-N. Messmer over Ramsey Br

Fair

Scott County, Missouri · S 68 T 29 N R 14 E · Structure no. 25567

Built
1925
100 years old
Condition
Fair
inspected January 2025
Type
Tee Beam
Concrete
Length
33 ft
1 main span
Daily traffic
35
2023 count
Owner
County
County Highway Agency

About this bridge

CR 430-N. Messmer over Ramsey Br is a concrete tee beam carrying CR 430-N. Messmer over Ramsey Br in Scott County, Missouri. It was built in 1925, so it is 100 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 35 vehicles a day, roughly 10% of them trucks, projected to reach 49 by 2043. The structure is 33 ft (10.1 m) long and 21 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCR 430-N. Messmer
CrossesRamsey Br
LocationS 68 T 29 N R 14 E
RouteCounty Highway 430
CountyScott County
StateMissouri
Coordinates37.2029, -89.54642
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length33 ft (10.1 m)
Longest span32 ft (9.8 m)
Deck width21 ft (6.5 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2023)
Projected traffic49 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 430-N. Messmer over Ramsey Br built?

It was built in 1925, making it 100 years old in 2025.

What condition is CR 430-N. Messmer over Ramsey 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 January 2025.

How much traffic does CR 430-N. Messmer over Ramsey Br carry?

About 35 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is CR 430-N. Messmer over Ramsey Br?

The structure is 33 ft (10.1 m) long with a longest span of 32 ft (9.8 m) and a deck 21 ft wide.

Who owns CR 430-N. Messmer over Ramsey Br?

It is owned by the County Highway Agency.