US Bridges

N Old Galena Trail over Br of E Fk of Plum R

Fair

Carroll County, Illinois · 2 MI N Mt.Carroll · Structure no. 008311000000000

Built
1925
100 years old
Condition
Fair
inspected May 2024
Type
Other
Concrete
Length
39 ft
1 main span
Daily traffic
100
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

N Old Galena Trail over Br of E Fk of Plum R is a concrete other carrying N Old Galena Trail over Br of E Fk of Plum R in Carroll County, Illinois. It was built in 1925, so it is 100 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 100 vehicles a day, roughly 22% of them trucks, projected to reach 101 by 2046. The structure is 39 ft (11.8 m) long and 21 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesN Old Galena Trail
CrossesBr of E Fk of Plum R
Location2 MI N Mt.Carroll
RouteCounty Highway 0
Coordinates42.13678, -89.99521
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38.6 US tons
Inventory rating23.3 US tons

Structure

Structure typeOther
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length39 ft (11.8 m)
Longest span37 ft (11.4 m)
Deck width21 ft (6.5 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2021)
Projected traffic101 by 2046
Trucks22%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$138,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N Old Galena Trail over Br of E Fk of Plum R built?

It was built in 1925, making it 100 years old in 2025.

What condition is N Old Galena Trail over Br of E Fk of Plum R 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 2024.

How much traffic does N Old Galena Trail over Br of E Fk of Plum R carry?

About 100 vehicles per day (2021 count), of which roughly 22% are trucks.

How long is N Old Galena Trail over Br of E Fk of Plum R?

The structure is 39 ft (11.8 m) long with a longest span of 37 ft (11.4 m) and a deck 21 ft wide.

Who owns N Old Galena Trail over Br of E Fk of Plum R?

It is owned by the Town or Township Highway Agency.