US Bridges

Unity RD over Trib of Waddams Crk

Good

Stephenson County, Illinois · 2.5MI NE of Lena · Structure no. 089512700000000

Built
2005
20 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
50
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Unity RD over Trib of Waddams Crk is a concrete culvert carrying Unity RD over Trib of Waddams Crk in Stephenson County, Illinois. It was built in 2005, so it is 20 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 51 by 2046. The structure is 27 ft (8.1 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUnity RD
CrossesTrib of Waddams Crk
Location2.5MI NE of Lena
RouteCounty Highway 0
Coordinates42.40095, -89.76285
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length27 ft (8.1 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2020)
Projected traffic51 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Unity RD over Trib of Waddams Crk built?

It was built in 2005, making it 20 years old in 2025.

What condition is Unity RD over Trib of Waddams Crk in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2023.

How much traffic does Unity RD over Trib of Waddams Crk carry?

About 50 vehicles per day (2020 count).

How long is Unity RD over Trib of Waddams Crk?

The structure is 27 ft (8.1 m) long with a longest span of 13 ft (4 m).

Who owns Unity RD over Trib of Waddams Crk?

It is owned by the Town or Township Highway Agency.