US Bridges

Best RD over S Br Otter Creek

Fair

Winnebago County, Illinois · 0.5 MI N Durand RD · Structure no. 101503600000000

Built
1955
70 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete Continuous
Length
35 ft
3 main spans
Daily traffic
3,000
2022 count
Owner
County
County Highway Agency

About this bridge

Best RD over S Br Otter Creek is a concrete continuous culvert carrying Best RD over S Br Otter Creek in Winnebago County, Illinois. It was built in 1955, so it is 70 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 5 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 3,000 vehicles a day, roughly 7% of them trucks, projected to reach 1,162 by 2046. The structure is 35 ft (10.6 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesBest RD
CrossesS Br Otter Creek
Location0.5 MI N Durand RD
RouteCounty Highway 0
CountyWinnebago County
StateIllinois
Coordinates42.44562, -89.38078
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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 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 rating41.8 US tons
Inventory rating25 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 15
Structure length35 ft (10.6 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,000 (2022)
Projected traffic1,162 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Best RD over S Br Otter Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is Best RD over S Br Otter 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 June 2023.

How much traffic does Best RD over S Br Otter Creek carry?

About 3,000 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Best RD over S Br Otter Creek?

The structure is 35 ft (10.6 m) long with a longest span of 13 ft (3.9 m).

Who owns Best RD over S Br Otter Creek?

It is owned by the County Highway Agency.