US Bridges

Park Road over Coon Creek

Good

Whiteside County, Illinois · Prohetstown St. Park · Structure no. 098991000000000

Built
1995
30 years old
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
79 ft
1 main span
Daily traffic
400
2022 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Park Road over Coon Creek is a prestressed concrete box beam or girders - multiple carrying Park Road over Coon Creek in Whiteside County, Illinois. It was built in 1995, so it is 30 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 400 vehicles a day, roughly 8% of them trucks, projected to reach 404 by 2046. The structure is 79 ft (24.2 m) long and 21 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesPark Road
CrossesCoon Creek
LocationProhetstown St. Park
Coordinates41.67203, -89.92821
Functional classRural Local

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 inspectionNovember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.3 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length79 ft (24.2 m)
Longest span77 ft (23.5 m)
Deck width21 ft (6.4 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2022)
Projected traffic404 by 2046
Trucks8%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation 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 Park Road over Coon Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is Park 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 November 2023.

How much traffic does Park Road over Coon Creek carry?

About 400 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Park Road over Coon Creek?

The structure is 79 ft (24.2 m) long with a longest span of 77 ft (23.5 m) and a deck 21 ft wide.

Who owns Park Road over Coon Creek?

It is owned by the State Park, Forest, or Reservation Agency.