US Bridges

Il 71 FAP 627 over Creek@hennepin Canyn

Good

LaSalle County, Illinois · 3.18 Mi. E of Il 178 · Structure no. 050023900000000

Built
2007
18 years old
Condition
Good
inspected January 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
73 ft
1 main span
Daily traffic
1,700
2023 count
Owner
State
State Highway Agency

About this bridge

Il 71 FAP 627 over Creek@hennepin Canyn is a prestressed concrete stringer/multi-beam or girder carrying Il 71 FAP 627 over Creek@hennepin Canyn in LaSalle County, Illinois. It was built in 2007, so it is 18 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 1,700 vehicles a day, roughly 4% of them trucks, projected to reach 1,364 by 2046. The structure is 73 ft (22.3 m) long and 39 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesIl 71 FAP 627
CrossesCreek@hennepin Canyn
Location3.18 Mi. E of Il 178
RouteState Highway 71
Coordinates41.3085, -88.95648
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating87.2 US tons
Inventory rating46.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length73 ft (22.3 m)
Longest span71 ft (21.5 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2023)
Projected traffic1,364 by 2046
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 71 FAP 627 over Creek@hennepin Canyn built?

It was built in 2007, making it 18 years old in 2025.

What condition is Il 71 FAP 627 over Creek@hennepin Canyn 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 January 2021.

How much traffic does Il 71 FAP 627 over Creek@hennepin Canyn carry?

About 1,700 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Il 71 FAP 627 over Creek@hennepin Canyn?

The structure is 73 ft (22.3 m) long with a longest span of 71 ft (21.5 m) and a deck 39 ft wide.

Who owns Il 71 FAP 627 over Creek@hennepin Canyn?

It is owned by the State Highway Agency.