US Bridges

Townsend Road over Coon Creek

Good

Jo Daviess County, Illinois · 6 M S Apple River · Structure no. 043322500000000

Built
1982
43 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
111 ft
3 main spans
Daily traffic
650
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Townsend Road over Coon Creek is a prestressed concrete box beam or girders - multiple carrying Townsend Road over Coon Creek in Jo Daviess County, Illinois. It was built in 1982, so it is 43 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 650 vehicles a day, roughly 10% of them trucks, projected to reach 657 by 2046. The structure is 111 ft (33.8 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesTownsend Road
CrossesCoon Creek
Location6 M S Apple River
RouteCounty Highway 0
Coordinates42.40394, -90.12762
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length111 ft (33.8 m)
Longest span36 ft (11 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2021)
Projected traffic657 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Townsend Road over Coon Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is Townsend Road over Coon 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 March 2023.

How much traffic does Townsend Road over Coon Creek carry?

About 650 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Townsend Road over Coon Creek?

The structure is 111 ft (33.8 m) long with a longest span of 36 ft (11 m) and a deck 30 ft wide.

Who owns Townsend Road over Coon Creek?

It is owned by the Town or Township Highway Agency.