US Bridges

Duncan Rd(fau 7155 over Phinney Branch

Fair

Champaign County, Illinois · S. of Stonybrook Dr. · Structure no. 010314700000000

Built
1969
56 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
7,100
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Duncan Rd(fau 7155 over Phinney Branch is a prestressed concrete box beam or girders - multiple carrying Duncan Rd(fau 7155 over Phinney Branch in Champaign County, Illinois. It was built in 1969, so it is 56 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 7,100 vehicles a day, roughly 4% of them trucks, projected to reach 7,575 by 2046. The structure is 75 ft (22.9 m) long and 42 ft wide.

Location

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CarriesDuncan Rd(fau 7155
CrossesPhinney Branch
LocationS. of Stonybrook Dr.
CountyChampaign County
StateIllinois
Coordinates40.09048, -88.2952
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating79.7 US tons
Inventory rating47.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length75 ft (22.9 m)
Longest span73 ft (22.3 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,100 (2024)
Projected traffic7,575 by 2046
Trucks4%
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 Duncan Rd(fau 7155 over Phinney Branch built?

It was built in 1969, making it 56 years old in 2025.

What condition is Duncan Rd(fau 7155 over Phinney 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 September 2023.

How much traffic does Duncan Rd(fau 7155 over Phinney Branch carry?

About 7,100 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Duncan Rd(fau 7155 over Phinney Branch?

The structure is 75 ft (22.9 m) long with a longest span of 73 ft (22.3 m) and a deck 42 ft wide.

Who owns Duncan Rd(fau 7155 over Phinney Branch?

It is owned by the City or Municipal Highway Agency.