US Bridges

Polo Road over Sugar Creek

Fair

Whiteside County, Illinois · 3 MI N of Sterling · Structure no. 098471700000000

Built
1975
50 years old
Condition
Fair
inspected October 2023
Type
Channel Beam
Concrete
Length
96 ft
3 main spans
Daily traffic
450
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Polo Road over Sugar Creek is a concrete channel beam carrying Polo Road over Sugar Creek in Whiteside County, Illinois. It was built in 1975, so it is 50 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 450 vehicles a day, roughly 2% of them trucks, projected to reach 455 by 2046. The structure is 96 ft (29.2 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesPolo Road
CrossesSugar Creek
Location3 MI N of Sterling
RouteCounty Highway 0
CountyWhiteside County
StateIllinois
Coordinates41.85131, -89.64953
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 15
Structure length96 ft (29.2 m)
Longest span32 ft (9.8 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2021)
Projected traffic455 by 2046
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Polo Road over Sugar Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Polo Road over Sugar Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does Polo Road over Sugar Creek carry?

About 450 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Polo Road over Sugar Creek?

The structure is 96 ft (29.2 m) long with a longest span of 32 ft (9.8 m) and a deck 30 ft wide.

Who owns Polo Road over Sugar Creek?

It is owned by the Town or Township Highway Agency.