US Bridges

US 50 E over Gasconade Rvr

Poor

Gasconade County, Missouri · S 19 T 43 N R 6 W · Structure no. 3210

Built
1979
46 years old
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
863 ft
2 main spans
Daily traffic
2,422
2024 count
Owner
State
State Highway Agency

About this bridge

US 50 E over Gasconade Rvr is a steel continuous stringer/multi-beam or girder carrying US 50 E over Gasconade Rvr in Gasconade County, Missouri. It was built in 1979, so it is 46 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 2,422 vehicles a day, roughly 20% of them trucks, projected to reach 4,239 by 2044. The structure is 863 ft (263 m) long and 47 ft wide. If it were closed, the detour would be 37.9 mi (61 km).

CarriesUS 50 E
CrossesGasconade Rvr
LocationS 19 T 43 N R 6 W
RouteU.S. Route 50
Coordinates38.4668, -91.6292
Functional classRural Principal Arterial - Other

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating33.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+8 approach)
Design loadHS 20 + Mod
Structure length863 ft (263 m)
Longest span161 ft (49 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,422 (2024)
Projected traffic4,239 by 2044
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.9 mi (61 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$6.2 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 50 E over Gasconade Rvr built?

It was built in 1979, making it 46 years old in 2025.

What condition is US 50 E over Gasconade Rvr in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does US 50 E over Gasconade Rvr carry?

About 2,422 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is US 50 E over Gasconade Rvr?

The structure is 863 ft (263 m) long with a longest span of 161 ft (49 m) and a deck 47 ft wide.

Who owns US 50 E over Gasconade Rvr?

It is owned by the State Highway Agency.