US Bridges

Loran Rd. over Plum Cr. Br.

Poor

Stephenson County, Illinois · 5.5 MI SW Pearl City · Structure no. 089501000000000

Built
1934
91 years old
Condition
Poor
inspected December 2023
Type
Culvert
Concrete
Length
39 ft
3 main spans
Daily traffic
200
2024 count
Owner
County
County Highway Agency

About this bridge

Loran Rd. over Plum Cr. Br. is a concrete culvert carrying Loran Rd. over Plum Cr. Br. in Stephenson County, Illinois. It was built in 1934, so it is 91 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 200 vehicles a day, roughly 7% of them trucks, projected to reach 227 by 2046. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 34.8 mi (56 km).

Location

Open in Google Maps
CarriesLoran Rd.
CrossesPlum Cr. Br.
Location5.5 MI SW Pearl City
RouteCounty Highway 0
CountyStephenson County
StateIllinois
Coordinates42.22215, -89.91741
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.2 US tons
Inventory rating28.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length39 ft (11.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2024)
Projected traffic227 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 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 Loran Rd. over Plum Cr. Br. built?

It was built in 1934, making it 91 years old in 2025.

What condition is Loran Rd. over Plum Cr. Br. in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2023.

How much traffic does Loran Rd. over Plum Cr. Br. carry?

About 200 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Loran Rd. over Plum Cr. Br.?

The structure is 39 ft (11.9 m) long with a longest span of 12 ft (3.7 m).

Who owns Loran Rd. over Plum Cr. Br.?

It is owned by the County Highway Agency.