US Bridges

Gregory Street over Sugar CR Main Branch

Fair

McLean County, Illinois · 1.9 MI N 51 & 150 · Structure no. 057780300000000

Built
1970
55 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
9,050
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Gregory Street over Sugar CR Main Branch is a concrete continuous culvert carrying Gregory Street over Sugar CR Main Branch in McLean County, Illinois. It was built in 1970, so it is 55 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 6 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 9,050 vehicles a day, roughly 5% of them trucks, projected to reach 6,414 by 2046. The structure is 27 ft (8.2 m) long and 58 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesGregory Street
CrossesSugar CR Main Branch
Location1.9 MI N 51 & 150
Coordinates40.51617, -88.99785
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating48.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length27 ft (8.2 m)
Longest span13 ft (4.1 m)
Deck width58 ft (17.7 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,050 (2024)
Projected traffic6,414 by 2046
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Gregory Street over Sugar CR Main Branch built?

It was built in 1970, making it 55 years old in 2025.

What condition is Gregory Street over Sugar CR Main Branch 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 Gregory Street over Sugar CR Main Branch carry?

About 9,050 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Gregory Street over Sugar CR Main Branch?

The structure is 27 ft (8.2 m) long with a longest span of 13 ft (4.1 m) and a deck 58 ft wide.

Who owns Gregory Street over Sugar CR Main Branch?

It is owned by the City or Municipal Highway Agency.