US Bridges

Roberts RD over Cn RR

FairPosted for load

Jo Daviess County, Illinois · 3 MI W Apple River · Structure no. 043990500000000

Built
1901
124 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
102 ft
5 main spans
Daily traffic
50
2021 count
Owner
Railroad
Railroad

About this bridge

Roberts RD over Cn RR is a wood or timber stringer/multi-beam or girder carrying Roberts RD over Cn RR in Jo Daviess County, Illinois. It was built in 1901, so it is 124 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. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, projected to reach 51 by 2046. The structure is 102 ft (31.1 m) long and 19 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesRoberts RD
CrossesCn RR
Location3 MI W Apple River
RouteCounty Highway 0
CountyJo Daviess County
StateIllinois
Coordinates42.50023, -90.1632
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating19.3 US tons
Inventory rating12.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans5
Design loadUnknown
Structure length102 ft (31.1 m)
Longest span20 ft (6.1 m)
Deck width19 ft (5.9 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2021)
Projected traffic51 by 2046
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerRailroad
Maintained byRailroad
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Roberts RD over Cn RR built?

It was built in 1901, making it 124 years old in 2025.

What condition is Roberts RD over Cn RR 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 2024.

How much traffic does Roberts RD over Cn RR carry?

About 50 vehicles per day (2021 count).

How long is Roberts RD over Cn RR?

The structure is 102 ft (31.1 m) long with a longest span of 20 ft (6.1 m) and a deck 19 ft wide.

Who owns Roberts RD over Cn RR?

It is owned by the Railroad.