US Bridges

Konert RD over Trib Meramec Rvr

Good

Jefferson County, Missouri · S 301 T 43 N R 5 E · Structure no. 14838

Built
1900
125 years old, rebuilt 1992
Condition
Good
inspected February 2025
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
3,000
2023 count
Owner
County
County Highway Agency

About this bridge

Konert RD over Trib Meramec Rvr is a concrete culvert carrying Konert RD over Trib Meramec Rvr in Jefferson County, Missouri. It was built in 1900 and reconstructed in 1992, so it is 125 years old, older 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 3,000 vehicles a day, roughly 5% of them trucks, projected to reach 5,100 by 2043. The structure is 20 ft (6.1 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesKonert RD
CrossesTrib Meramec Rvr
LocationS 301 T 43 N R 5 E
RouteCounty Highway 0
Coordinates38.45747, -90.4479
Functional classUrban Collector

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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,000 (2023)
Projected traffic5,100 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$225,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Konert RD over Trib Meramec Rvr built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1992.

What condition is Konert RD over Trib Meramec Rvr 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 February 2025.

How much traffic does Konert RD over Trib Meramec Rvr carry?

About 3,000 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Konert RD over Trib Meramec Rvr?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 27 ft wide.

Who owns Konert RD over Trib Meramec Rvr?

It is owned by the County Highway Agency.