US Bridges

Anderson School RD over Spring Fk

PoorPosted for load

Pettis County, Missouri · S 4 T 44 N R 21 W · Structure no. 20710

Built
1974
51 years old
Condition
Poor
inspected February 2024
Type
Channel Beam
Concrete
Length
115 ft
3 main spans
Daily traffic
200
2024 count
Owner
County
County Highway Agency

About this bridge

Anderson School RD over Spring Fk is a concrete channel beam carrying Anderson School RD over Spring Fk in Pettis County, Missouri. It was built in 1974, so it is 51 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. Its operating status is: posted for load restriction.

It carries about 200 vehicles a day, roughly 10% of them trucks, projected to reach 340 by 2044. The structure is 115 ft (35.1 m) long and 22 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesAnderson School RD
CrossesSpring Fk
LocationS 4 T 44 N R 21 W
RouteCounty Highway 271
Coordinates38.62502, -93.24413
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.8 US tons
Inventory rating21.8 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length115 ft (35.1 m)
Longest span47 ft (14.3 m)
Deck width22 ft (6.8 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2024)
Projected traffic340 by 2044
Trucks10%
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$993,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Anderson School RD over Spring Fk built?

It was built in 1974, making it 51 years old in 2025.

What condition is Anderson School RD over Spring Fk 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 February 2024.

How much traffic does Anderson School RD over Spring Fk carry?

About 200 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Anderson School RD over Spring Fk?

The structure is 115 ft (35.1 m) long with a longest span of 47 ft (14.3 m) and a deck 22 ft wide.

Who owns Anderson School RD over Spring Fk?

It is owned by the County Highway Agency.