US Bridges

ST Francis Road over Union Ditch

Good

Will County, Illinois · 1.2 MI E US-45 · Structure no. 099440100000000

Built
1984
41 years old, rebuilt 2020
Condition
Good
inspected February 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
92 ft
3 main spans
Daily traffic
8,450
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

ST Francis Road over Union Ditch is a prestressed concrete box beam or girders - multiple carrying ST Francis Road over Union Ditch in Will County, Illinois. It was built in 1984 and reconstructed in 2020, so it is 41 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,450 vehicles a day, roughly 5% of them trucks, projected to reach 14,472 by 2046. The structure is 92 ft (28 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesST Francis Road
CrossesUnion Ditch
Location1.2 MI E US-45
CountyWill County
StateIllinois
Coordinates41.52152, -87.82604
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length92 ft (28 m)
Longest span40 ft (12.2 m)
Deck width39 ft (11.9 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,450 (2023)
Projected traffic14,472 by 2046
Trucks5%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$428,000
NavigationNo navigation control on waterway

Frequently asked questions

When was ST Francis Road over Union Ditch built?

It was built in 1984, making it 41 years old in 2025. It was reconstructed in 2020.

What condition is ST Francis Road over Union Ditch 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 2023.

How much traffic does ST Francis Road over Union Ditch carry?

About 8,450 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is ST Francis Road over Union Ditch?

The structure is 92 ft (28 m) long with a longest span of 40 ft (12.2 m) and a deck 39 ft wide.

Who owns ST Francis Road over Union Ditch?

It is owned by the City or Municipal Highway Agency.