US Bridges

Rockton Ave over Br Mud Creek

Fair

Winnebago County, Illinois · 1 MI S Latham RD · Structure no. 101506800000000

Built
1956
69 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
675
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Rockton Ave over Br Mud Creek is a concrete culvert carrying Rockton Ave over Br Mud Creek in Winnebago County, Illinois. It was built in 1956, so it is 69 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 675 vehicles a day, roughly 7% of them trucks, projected to reach 1,061 by 2046. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesRockton Ave
CrossesBr Mud Creek
Location1 MI S Latham RD
RouteCounty Highway 0
CountyWinnebago County
StateIllinois
Coordinates42.35463, -89.09711
Functional classRural Major 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 15
Structure length25 ft (7.6 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic675 (2022)
Projected traffic1,061 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Rockton Ave over Br Mud Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is Rockton Ave over Br Mud 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 May 2023.

How much traffic does Rockton Ave over Br Mud Creek carry?

About 675 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Rockton Ave over Br Mud Creek?

The structure is 25 ft (7.6 m) long with a longest span of 10 ft (3 m).

Who owns Rockton Ave over Br Mud Creek?

It is owned by the Town or Township Highway Agency.