US Bridges

Covell Road over Rock Creek

FairClosed to traffic

Whiteside County, Illinois · 5 MI NE of Morrison · Structure no. 098361500000000

Built
1989
36 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
79 ft
1 main span
Daily traffic
35
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Covell Road over Rock Creek is a prestressed concrete box beam or girders - multiple carrying Covell Road over Rock Creek in Whiteside County, Illinois. It was built in 1989, so it is 36 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. Its operating status is: closed to all traffic.

It carries about 35 vehicles a day, roughly 9% of them trucks, projected to reach 35 by 2046. The structure is 79 ft (24 m) long and 27 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesCovell Road
CrossesRock Creek
Location5 MI NE of Morrison
RouteCounty Highway 0
CountyWhiteside County
StateIllinois
Coordinates41.91685, -89.88079
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating61.8 US tons
Inventory rating37.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length79 ft (24 m)
Longest span74 ft (22.6 m)
Deck width27 ft (8.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2021)
Projected traffic35 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Covell Road over Rock Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Covell Road over Rock 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 Covell Road over Rock Creek carry?

About 35 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is Covell Road over Rock Creek?

The structure is 79 ft (24 m) long with a longest span of 74 ft (22.6 m) and a deck 27 ft wide.

Who owns Covell Road over Rock Creek?

It is owned by the Town or Township Highway Agency.