US Bridges

Ashley RD FAU 597 over Saratoga CR

Good

Grundy County, Illinois · .99 MI N Granville R · Structure no. 032380500000000

Built
1960
65 years old
Condition
Good
inspected October 2024
Type
Culvert
Steel
Length
38 ft
3 main spans
Daily traffic
675
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Ashley RD FAU 597 over Saratoga CR is a steel culvert carrying Ashley RD FAU 597 over Saratoga CR in Grundy County, Illinois. It was built in 1960, so it is 65 years old, older 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 675 vehicles a day, roughly 20% of them trucks, projected to reach 840 by 2046. The structure is 38 ft (11.6 m) long and 24 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesAshley RD FAU 597
CrossesSaratoga CR
Location.99 MI N Granville R
CountyGrundy County
StateIllinois
Coordinates41.41617, -88.40356
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.9 US tons
Inventory rating63.6 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span12 ft (3.7 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic675 (2024)
Projected traffic840 by 2046
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Ashley RD FAU 597 over Saratoga CR built?

It was built in 1960, making it 65 years old in 2025.

What condition is Ashley RD FAU 597 over Saratoga CR 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 October 2024.

How much traffic does Ashley RD FAU 597 over Saratoga CR carry?

About 675 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is Ashley RD FAU 597 over Saratoga CR?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m) and a deck 24 ft wide.

Who owns Ashley RD FAU 597 over Saratoga CR?

It is owned by the Town or Township Highway Agency.