US Bridges

Blair DR over Sugar Creek

Fair

McLean County, Illinois · 1.7 MI Nnw BUS55 & 9 · Structure no. 057782900000000

Built
1991
34 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete Continuous
Length
38 ft
3 main spans
Daily traffic
1,500
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Blair DR over Sugar Creek is a concrete continuous culvert carrying Blair DR over Sugar Creek in McLean 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 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 1,500 vehicles a day, roughly 6% of them trucks, projected to reach 1,414 by 2046. The structure is 38 ft (11.6 m) long and 81 ft wide.

CarriesBlair DR
CrossesSugar Creek
Location1.7 MI Nnw BUS55 & 9
Coordinates40.51492, -88.96869
Functional classRural Minor Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: 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 Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span13 ft (3.9 m)
Deck width81 ft (24.7 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2024)
Projected traffic1,414 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Blair DR over Sugar Creek built?

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

What condition is Blair DR 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 January 2024.

How much traffic does Blair DR over Sugar Creek carry?

About 1,500 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Blair DR over Sugar Creek?

The structure is 38 ft (11.6 m) long with a longest span of 13 ft (3.9 m) and a deck 81 ft wide.

Who owns Blair DR over Sugar Creek?

It is owned by the City or Municipal Highway Agency.