US Bridges

Palmer RD over Cedar Creek

Fair

Whiteside County, Illinois · .56 MI W Elston RD · Structure no. 098416000000000

Built
2008
17 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
33 ft
1 main span
Daily traffic
75
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Palmer RD over Cedar Creek is a prestressed concrete box beam or girders - multiple carrying Palmer RD over Cedar Creek in Whiteside County, Illinois. It was built in 2008, so it is 17 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 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 75 vehicles a day, roughly 20% of them trucks, projected to reach 76 by 2046. The structure is 33 ft (10.2 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesPalmer RD
CrossesCedar Creek
Location.56 MI W Elston RD
RouteCounty Highway 0
Coordinates41.79423, -90.16327
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length33 ft (10.2 m)
Longest span30 ft (9.1 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2022)
Projected traffic76 by 2046
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Palmer RD over Cedar Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is Palmer RD 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 2024.

How much traffic does Palmer RD over Cedar Creek carry?

About 75 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is Palmer RD over Cedar Creek?

The structure is 33 ft (10.2 m) long with a longest span of 30 ft (9.1 m) and a deck 24 ft wide.

Who owns Palmer RD over Cedar Creek?

It is owned by the Town or Township Highway Agency.