US Bridges

Il RTE 73 over Creek

Good

Stephenson County, Illinois · .04MI N of Wire RD · Structure no. 089110900000000

Built
2008
17 years old
Condition
Good
inspected July 2022
Type
Culvert
Concrete
Length
43 ft
4 main spans
Daily traffic
1,250
2023 count
Owner
State
State Highway Agency

About this bridge

Il RTE 73 over Creek is a concrete culvert carrying Il RTE 73 over Creek in Stephenson County, Illinois. It was built in 2008, so it is 17 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 1,250 vehicles a day, roughly 13% of them trucks, projected to reach 1,465 by 2046. The structure is 43 ft (13.1 m) long and 38 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesIl RTE 73
CrossesCreek
Location.04MI N of Wire RD
RouteState Highway 73
Coordinates42.45258, -89.78958
Functional classRural Major 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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating38.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length43 ft (13.1 m)
Longest span10 ft (3.2 m)
Deck width38 ft (11.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,250 (2023)
Projected traffic1,465 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 RTE 73 over Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is Il RTE 73 over 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 July 2022.

How much traffic does Il RTE 73 over Creek carry?

About 1,250 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is Il RTE 73 over Creek?

The structure is 43 ft (13.1 m) long with a longest span of 10 ft (3.2 m) and a deck 38 ft wide.

Who owns Il RTE 73 over Creek?

It is owned by the State Highway Agency.