US Bridges

TR 52 / 170th Ave over Br. Coppereas Creek

Good

Rock Island County, Illinois · 1 Mi. N. Buffalo Pr. · Structure no. 081502500000000

Built
1991
34 years old
Condition
Good
inspected November 2022
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
10
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 52 / 170th Ave over Br. Coppereas Creek is a concrete culvert carrying TR 52 / 170th Ave over Br. Coppereas Creek in Rock Island County, Illinois. It was built in 1991, so it is 34 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 10 vehicles a day, projected to reach 10 by 2046. The structure is 26 ft (8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTR 52 / 170th Ave
CrossesBr. Coppereas Creek
Location1 Mi. N. Buffalo Pr.
RouteCounty Highway 0
CountyRock Island County
StateIllinois
Coordinates41.35268, -90.83799
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
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (8 m)
Longest span11 ft (3.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2020)
Projected traffic10 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 TR 52 / 170th Ave over Br. Coppereas Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is TR 52 / 170th Ave over Br. Coppereas 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 2022.

How much traffic does TR 52 / 170th Ave over Br. Coppereas Creek carry?

About 10 vehicles per day (2020 count).

How long is TR 52 / 170th Ave over Br. Coppereas Creek?

The structure is 26 ft (8 m) long with a longest span of 11 ft (3.5 m).

Who owns TR 52 / 170th Ave over Br. Coppereas Creek?

It is owned by the Town or Township Highway Agency.