US Bridges

Rt Y E over Niangua Rvr

Poor

Webster County, Missouri · S 33 T 32 N R 18 W · Structure no. 8002

Built
1955
70 years old
Condition
Poor
inspected November 2024
Type
Culvert
Concrete Continuous
Length
52 ft
4 main spans
Daily traffic
461
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Y E over Niangua Rvr is a concrete continuous culvert carrying Rt Y E over Niangua Rvr in Webster County, Missouri. It was built in 1955, so it is 70 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 461 vehicles a day, roughly 6% of them trucks, projected to reach 738 by 2044. The structure is 52 ft (15.7 m) long and 25 ft wide. If it were closed, the detour would be 26.1 mi (42 km).

Location

Open in Google Maps
CarriesRt Y E
CrossesNiangua Rvr
LocationS 33 T 32 N R 18 W
RouteState Highway 0Y
CountyWebster County
StateMissouri
Coordinates37.45036, -92.92381
Functional classRural Minor Collector

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
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34.7 US tons
Inventory rating20.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 10
Structure length52 ft (15.7 m)
Longest span12 ft (3.7 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic461 (2024)
Projected traffic738 by 2044
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$450,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rt Y E over Niangua Rvr built?

It was built in 1955, making it 70 years old in 2025.

What condition is Rt Y E over Niangua 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 November 2024.

How much traffic does Rt Y E over Niangua Rvr carry?

About 461 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Rt Y E over Niangua Rvr?

The structure is 52 ft (15.7 m) long with a longest span of 12 ft (3.7 m) and a deck 25 ft wide.

Who owns Rt Y E over Niangua Rvr?

It is owned by the State Highway Agency.