US Bridges

Nilwood Waggoner R over Shearles Branch

Fair

Macoupin County, Illinois · 3 Mi. E. Nilwood · Structure no. 059323200000000

Built
1969
56 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete Continuous
Length
84 ft
3 main spans
Daily traffic
200
2024 count
Owner
County
County Highway Agency

About this bridge

Nilwood Waggoner R over Shearles Branch is a concrete continuous slab carrying Nilwood Waggoner R over Shearles Branch in Macoupin County, Illinois. It was built in 1969, so it is 56 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 200 vehicles a day, roughly 16% of them trucks, projected to reach 227 by 2046. The structure is 84 ft (25.5 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNilwood Waggoner R
CrossesShearles Branch
Location3 Mi. E. Nilwood
RouteCounty Highway 0
CountyMacoupin County
StateIllinois
Coordinates39.39165, -89.75769
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating38.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length84 ft (25.5 m)
Longest span31 ft (9.5 m)
Deck width38 ft (11.6 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2024)
Projected traffic227 by 2046
Trucks16%
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

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 Nilwood Waggoner R over Shearles Branch built?

It was built in 1969, making it 56 years old in 2025.

What condition is Nilwood Waggoner R over Shearles Branch 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 March 2023.

How much traffic does Nilwood Waggoner R over Shearles Branch carry?

About 200 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is Nilwood Waggoner R over Shearles Branch?

The structure is 84 ft (25.5 m) long with a longest span of 31 ft (9.5 m) and a deck 38 ft wide.

Who owns Nilwood Waggoner R over Shearles Branch?

It is owned by the County Highway Agency.