US Bridges

Il 127 over Miller Creek

Good

Montgomery County, Illinois · 1.8 M S of Il 185 · Structure no. 068051100000000

Built
2012
13 years old
Condition
Good
inspected November 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
75 ft
1 main span
Daily traffic
2,450
2023 count
Owner
State
State Highway Agency

About this bridge

Il 127 over Miller Creek is a steel stringer/multi-beam or girder carrying Il 127 over Miller Creek in Montgomery County, Illinois. It was built in 2012, so it is 13 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 2,450 vehicles a day, roughly 10% of them trucks, projected to reach 2,273 by 2046. The structure is 75 ft (22.9 m) long and 39 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesIl 127
CrossesMiller Creek
Location1.8 M S of Il 185
RouteState Highway 127
Coordinates39.11001, -89.48736
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 rating76.4 US tons
Inventory rating45.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length75 ft (22.9 m)
Longest span73 ft (22.1 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,450 (2023)
Projected traffic2,273 by 2046
Trucks10%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Il 127 over Miller Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Il 127 over Miller 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 November 2022.

How much traffic does Il 127 over Miller Creek carry?

About 2,450 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Il 127 over Miller Creek?

The structure is 75 ft (22.9 m) long with a longest span of 73 ft (22.1 m) and a deck 39 ft wide.

Who owns Il 127 over Miller Creek?

It is owned by the State Highway Agency.