US Bridges

Il 127 over Union Pacific RR

Good

Montgomery County, Illinois · .1M N Il 185 · Structure no. 068005700000000

Built
1990
35 years old
Condition
Good
inspected February 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
210 ft
3 main spans
Daily traffic
6,300
2023 count
Owner
State
State Highway Agency

About this bridge

Il 127 over Union Pacific RR is a prestressed concrete continuous stringer/multi-beam or girder carrying Il 127 over Union Pacific RR in Montgomery County, Illinois. It was built in 1990, so it is 35 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 6,300 vehicles a day, roughly 7% of them trucks, projected to reach 5,959 by 2046. The structure is 210 ft (64.1 m) long and 43 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesIl 127
CrossesUnion Pacific RR
Location.1M N Il 185
RouteState Highway 127
CountyMontgomery County
StateIllinois
Coordinates39.13951, -89.487
Functional classUrban Other Principal 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.5 US tons
Inventory rating52.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length210 ft (64.1 m)
Longest span69 ft (20.9 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,300 (2023)
Projected traffic5,959 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed31.1 mi (50 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Il 127 over Union Pacific RR built?

It was built in 1990, making it 35 years old in 2025.

What condition is Il 127 over Union Pacific RR 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 February 2022.

How much traffic does Il 127 over Union Pacific RR carry?

About 6,300 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Il 127 over Union Pacific RR?

The structure is 210 ft (64.1 m) long with a longest span of 69 ft (20.9 m) and a deck 43 ft wide.

Who owns Il 127 over Union Pacific RR?

It is owned by the State Highway Agency.