US Bridges

Plank School RD over E Fk of Niangua Rv

Good

Webster County, Missouri · S 25 T 31 N R 18 W · Structure no. 32847

Built
2009
16 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
78 ft
1 main span
Daily traffic
40
2023 count
Owner
County
County Highway Agency

About this bridge

Plank School RD over E Fk of Niangua Rv is a steel stringer/multi-beam or girder carrying Plank School RD over E Fk of Niangua Rv in Webster County, Missouri. It was built in 2009, so it is 16 years old, younger 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 40 vehicles a day, roughly 10% of them trucks, projected to reach 66 by 2043. The structure is 78 ft (23.9 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesPlank School RD
CrossesE Fk of Niangua Rv
LocationS 25 T 31 N R 18 W
RouteCounty Highway 0
CountyWebster County
StateMissouri
Coordinates37.38272, -92.88111
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length78 ft (23.9 m)
Longest span78 ft (23.9 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2023)
Projected traffic66 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Plank School RD over E Fk of Niangua Rv built?

It was built in 2009, making it 16 years old in 2025.

What condition is Plank School RD over E Fk of Niangua Rv 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 April 2023.

How much traffic does Plank School RD over E Fk of Niangua Rv carry?

About 40 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Plank School RD over E Fk of Niangua Rv?

The structure is 78 ft (23.9 m) long with a longest span of 78 ft (23.9 m) and a deck 25 ft wide.

Who owns Plank School RD over E Fk of Niangua Rv?

It is owned by the County Highway Agency.