US Bridges

Ill Rt 84 over Cedar Creek

Fair

Whiteside County, Illinois · 1.5 MI N Albany · Structure no. 098002200000000

Built
1931
94 years old, rebuilt 2006
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
48 ft
1 main span
Daily traffic
4,050
2023 count
Owner
State
State Highway Agency

About this bridge

Ill Rt 84 over Cedar Creek is a prestressed concrete box beam or girders - multiple carrying Ill Rt 84 over Cedar Creek in Whiteside County, Illinois. It was built in 1931 and reconstructed in 2006, so it is 94 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 4,050 vehicles a day, roughly 11% of them trucks, projected to reach 4,495 by 2046. The structure is 48 ft (14.6 m) long and 40 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

CarriesIll Rt 84
CrossesCedar Creek
Location1.5 MI N Albany
RouteState Highway 84
Coordinates41.80322, -90.18029
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to 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 rating92.8 US tons
Inventory rating45 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span46 ft (14 m)
Deck width40 ft (12.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,050 (2023)
Projected traffic4,495 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Ill Rt 84 over Cedar Creek built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 2006.

What condition is Ill Rt 84 over Cedar 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 Ill Rt 84 over Cedar Creek carry?

About 4,050 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Ill Rt 84 over Cedar Creek?

The structure is 48 ft (14.6 m) long with a longest span of 46 ft (14 m) and a deck 40 ft wide.

Who owns Ill Rt 84 over Cedar Creek?

It is owned by the State Highway Agency.