US Bridges

242nd ST over Big Muddy CR

Fair

Daviess County, Missouri · S 9 T 61 N R 27 W · Structure no. 22975

Built
1915
110 years old, rebuilt 2014
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
52 ft
1 main span
Daily traffic
15
2024 count
Owner
County
County Highway Agency

About this bridge

242nd ST over Big Muddy CR is a steel stringer/multi-beam or girder carrying 242nd ST over Big Muddy CR in Daviess County, Missouri. It was built in 1915 and reconstructed in 2014, so it is 110 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 15 vehicles a day, roughly 10% of them trucks, projected to reach 17 by 2044. The structure is 52 ft (15.8 m) long and 20 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
Carries242nd ST
CrossesBig Muddy CR
LocationS 9 T 61 N R 27 W
RouteCounty Highway 384
CountyDaviess County
StateMissouri
Coordinates40.0932, -93.94864
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable 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
Structure length52 ft (15.8 m)
Longest span51 ft (15.5 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2024)
Projected traffic17 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 242nd ST over Big Muddy CR built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 2014.

What condition is 242nd ST over Big Muddy CR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2024.

How much traffic does 242nd ST over Big Muddy CR carry?

About 15 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is 242nd ST over Big Muddy CR?

The structure is 52 ft (15.8 m) long with a longest span of 51 ft (15.5 m) and a deck 20 ft wide.

Who owns 242nd ST over Big Muddy CR?

It is owned by the County Highway Agency.