US Bridges

Project RD over Pierce CR of L Mer

Fair

Franklin County, Missouri · S 19 T 41 N R 2 E · Structure no. 21182

Built
1990
35 years old
Condition
Fair
inspected January 2025
Type
Tee Beam
Prestressed Concrete
Length
93 ft
2 main spans
Daily traffic
150
2023 count
Owner
County
County Highway Agency

About this bridge

Project RD over Pierce CR of L Mer is a prestressed concrete tee beam carrying Project RD over Pierce CR of L Mer in Franklin County, Missouri. It was built in 1990, so it is 35 years old, younger 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 150 vehicles a day, roughly 13% of them trucks, projected to reach 270 by 2043. The structure is 93 ft (28.3 m) long and 27 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesProject RD
CrossesPierce CR of L Mer
LocationS 19 T 41 N R 2 E
RouteCounty Highway 293
CountyFranklin County
StateMissouri
Coordinates38.27644, -90.8489
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2025
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length93 ft (28.3 m)
Longest span45 ft (13.7 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2023)
Projected traffic270 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Project RD over Pierce CR of L Mer built?

It was built in 1990, making it 35 years old in 2025.

What condition is Project RD over Pierce CR of L Mer 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 Project RD over Pierce CR of L Mer carry?

About 150 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is Project RD over Pierce CR of L Mer?

The structure is 93 ft (28.3 m) long with a longest span of 45 ft (13.7 m) and a deck 27 ft wide.

Who owns Project RD over Pierce CR of L Mer?

It is owned by the County Highway Agency.