US Bridges

240th ST over Big Muddy CR

Poor

Daviess County, Missouri · S 28 T 60 N R 27 W · Structure no. 23603

Built
1974
51 years old
Condition
Poor
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
97 ft
3 main spans
Daily traffic
25
2024 count
Owner
County
County Highway Agency

About this bridge

240th ST over Big Muddy CR is a steel stringer/multi-beam or girder carrying 240th ST over Big Muddy CR in Daviess 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.

It carries about 25 vehicles a day, roughly 10% of them trucks, projected to reach 29 by 2044. The structure is 97 ft (29.6 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries240th ST
CrossesBig Muddy CR
LocationS 28 T 60 N R 27 W
RouteCounty Highway 418
CountyDaviess County
StateMissouri
Coordinates39.98028, -93.94761
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 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 adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating31.7 US tons
Inventory rating19.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 10
Structure length97 ft (29.6 m)
Longest span49 ft (14.9 m)
Deck width20 ft (6 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2024)
Projected traffic29 by 2044
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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$483,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 240th ST over Big Muddy CR built?

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

What condition is 240th ST over Big Muddy CR 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 January 2024.

How much traffic does 240th ST over Big Muddy CR carry?

About 25 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is 240th ST over Big Muddy CR?

The structure is 97 ft (29.6 m) long with a longest span of 49 ft (14.9 m) and a deck 20 ft wide.

Who owns 240th ST over Big Muddy CR?

It is owned by the County Highway Agency.