US Bridges

Il 125 over Richland Creek

Fair

Sangamon County, Illinois · .7M E Cartwright St. · Structure no. 084017300000000

Built
1979
46 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
147 ft
3 main spans
Daily traffic
5,800
2023 count
Owner
State
State Highway Agency

About this bridge

Il 125 over Richland Creek is a steel continuous stringer/multi-beam or girder carrying Il 125 over Richland Creek in Sangamon County, Illinois. It was built in 1979, so it is 46 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 5,800 vehicles a day, roughly 6% of them trucks, projected to reach 5,303 by 2046. The structure is 147 ft (44.7 m) long and 46 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesIl 125
CrossesRichland Creek
Location.7M E Cartwright St.
RouteState Highway 125
Coordinates39.87172, -89.90907
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.7 US tons
Inventory rating41.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length147 ft (44.7 m)
Longest span54 ft (16.5 m)
Deck width46 ft (14 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,800 (2023)
Projected traffic5,303 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Il 125 over Richland Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Il 125 over Richland Creek 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 July 2024.

How much traffic does Il 125 over Richland Creek carry?

About 5,800 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Il 125 over Richland Creek?

The structure is 147 ft (44.7 m) long with a longest span of 54 ft (16.5 m) and a deck 46 ft wide.

Who owns Il 125 over Richland Creek?

It is owned by the State Highway Agency.