US Bridges

Ill 127 over Mill Creek

Good

Union County, Illinois · 1.4 MI N Mill Creek · Structure no. 091201700000000

Built
1985
40 years old
Condition
Good
inspected January 2023
Type
Culvert
Concrete Continuous
Length
30 ft
2 main spans
Daily traffic
900
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 127 over Mill Creek is a concrete continuous culvert carrying Ill 127 over Mill Creek in Union County, Illinois. It was built in 1985, so it is 40 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 900 vehicles a day, roughly 9% of them trucks, projected to reach 1,162 by 2046. The structure is 30 ft (9.2 m) long. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesIll 127
CrossesMill Creek
Location1.4 MI N Mill Creek
RouteState Highway 127
CountyUnion County
StateIllinois
Coordinates37.36594, -89.26432
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length30 ft (9.2 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2023)
Projected traffic1,162 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 Ill 127 over Mill Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Ill 127 over Mill Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2023.

How much traffic does Ill 127 over Mill Creek carry?

About 900 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Ill 127 over Mill Creek?

The structure is 30 ft (9.2 m) long with a longest span of 14 ft (4.3 m).

Who owns Ill 127 over Mill Creek?

It is owned by the State Highway Agency.