US Bridges

Arctic ST over Lit Muddy CR

PoorPosted for load

Mercer County, Missouri · S 28 T 67 N R 23 W · Structure no. 31541

Built
2005
20 years old
Condition
Poor
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
27 ft
1 main span
Daily traffic
10
2024 count
Owner
County
County Highway Agency

About this bridge

Arctic ST over Lit Muddy CR is a steel stringer/multi-beam or girder carrying Arctic ST over Lit Muddy CR in Mercer County, Missouri. It was built in 2005, so it is 20 years old, younger 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 10 vehicles a day, roughly 10% of them trucks, projected to reach 11 by 2044. The structure is 27 ft (8.3 m) long and 14 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesArctic ST
CrossesLit Muddy CR
LocationS 28 T 67 N R 23 W
RouteCounty Highway 73
Coordinates40.57533, -93.49922
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating32.7 US tons
Inventory rating19.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length27 ft (8.3 m)
Longest span26 ft (8 m)
Deck width14 ft (4.4 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2024)
Projected traffic11 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$272,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Arctic ST over Lit Muddy CR built?

It was built in 2005, making it 20 years old in 2025.

What condition is Arctic ST over Lit 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 December 2023.

How much traffic does Arctic ST over Lit Muddy CR carry?

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

How long is Arctic ST over Lit Muddy CR?

The structure is 27 ft (8.3 m) long with a longest span of 26 ft (8 m) and a deck 14 ft wide.

Who owns Arctic ST over Lit Muddy CR?

It is owned by the County Highway Agency.