US Bridges

Ch 3 over Mill Creek

Fair

Union County, Illinois · 0.14M.E of Ill 127 · Structure no. 091311100000000

Built
1972
53 years old
Condition
Fair
inspected March 2023
Type
Channel Beam
Concrete
Length
115 ft
3 main spans
Daily traffic
250
2020 count
Owner
County
County Highway Agency

About this bridge

Ch 3 over Mill Creek is a concrete channel beam carrying Ch 3 over Mill Creek in Union County, Illinois. It was built in 1972, so it is 53 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 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 250 vehicles a day, roughly 13% of them trucks, projected to reach 253 by 2046. The structure is 115 ft (35.1 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCh 3
CrossesMill Creek
Location0.14M.E of Ill 127
RouteCounty Highway 0
CountyUnion County
StateIllinois
Coordinates37.34071, -89.2495
Functional classRural Minor Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating36.4 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 15
Structure length115 ft (35.1 m)
Longest span38 ft (11.6 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2020)
Projected traffic253 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Ch 3 over Mill Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Ch 3 over Mill 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 March 2023.

How much traffic does Ch 3 over Mill Creek carry?

About 250 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is Ch 3 over Mill Creek?

The structure is 115 ft (35.1 m) long with a longest span of 38 ft (11.6 m) and a deck 30 ft wide.

Who owns Ch 3 over Mill Creek?

It is owned by the County Highway Agency.