US Bridges

Ill 14 over Overflow L Muddy R.

Fair

Franklin County, Illinois · 0.15 E Perry CO Line · Structure no. 028200500000000

Built
1955
70 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
3,550
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 14 over Overflow L Muddy R. is a concrete continuous culvert carrying Ill 14 over Overflow L Muddy R. in Franklin County, Illinois. It was built in 1955, so it is 70 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 3,550 vehicles a day, roughly 12% of them trucks, projected to reach 4,000 by 2046. The structure is 21 ft (6.3 m) long and 51 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesIll 14
CrossesOverflow L Muddy R.
Location0.15 E Perry CO Line
RouteState Highway 14
Coordinates37.97587, -89.15099
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating27.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width51 ft (15.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,550 (2023)
Projected traffic4,000 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$105,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Ill 14 over Overflow L Muddy R. built?

It was built in 1955, making it 70 years old in 2025.

What condition is Ill 14 over Overflow L Muddy R. 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 2025.

How much traffic does Ill 14 over Overflow L Muddy R. carry?

About 3,550 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Ill 14 over Overflow L Muddy R.?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m) and a deck 51 ft wide.

Who owns Ill 14 over Overflow L Muddy R.?

It is owned by the State Highway Agency.