US Bridges

South Loran RD over Branch Plum Creek

Good

Stephenson County, Illinois · 5.5 MI SW Pearl City · Structure no. 089503600000000

Built
1935
90 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
200
2024 count
Owner
County
County Highway Agency

About this bridge

South Loran RD over Branch Plum Creek is a concrete culvert carrying South Loran RD over Branch Plum Creek in Stephenson County, Illinois. It was built in 1935, so it is 90 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 200 vehicles a day, roughly 7% of them trucks, projected to reach 227 by 2046. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 34.8 mi (56 km).

CarriesSouth Loran RD
CrossesBranch Plum Creek
Location5.5 MI SW Pearl City
RouteCounty Highway 0
Coordinates42.21945, -89.91931
Functional classRural Major Collector

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.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.2 US tons
Inventory rating36.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span10 ft (3 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 South Loran RD over Branch Plum Creek built?

It was built in 1935, making it 90 years old in 2025.

What condition is South Loran RD over Branch Plum Creek 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 South Loran RD over Branch Plum Creek carry?

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

How long is South Loran RD over Branch Plum Creek?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns South Loran RD over Branch Plum Creek?

It is owned by the County Highway Agency.