US Bridges

TR-170 over Whitley Creek

Good

Moultrie County, Illinois · 2.7 MI N of Gays · Structure no. 070482900000000

Built
2017
8 years old
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
65 ft
1 main span
Daily traffic
75
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR-170 over Whitley Creek is a prestressed concrete box beam or girders - multiple carrying TR-170 over Whitley Creek in Moultrie County, Illinois. It was built in 2017, so it is 8 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 75 vehicles a day, roughly 5% of them trucks, projected to reach 79 by 2046. The structure is 65 ft (19.7 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesTR-170
CrossesWhitley Creek
Location2.7 MI N of Gays
RouteCounty Highway 0
CountyMoultrie County
StateIllinois
Coordinates39.50118, -88.48991
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2023
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 rating51 US tons
Inventory rating40.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length65 ft (19.7 m)
Longest span62 ft (18.8 m)
Deck width27 ft (8.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2020)
Projected traffic79 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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-170 over Whitley Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is TR-170 over Whitley 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 TR-170 over Whitley Creek carry?

About 75 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is TR-170 over Whitley Creek?

The structure is 65 ft (19.7 m) long with a longest span of 62 ft (18.8 m) and a deck 27 ft wide.

Who owns TR-170 over Whitley Creek?

It is owned by the Town or Township Highway Agency.