US Bridges

East Lamm Road over Cranes Grove Creek

Fair

Stephenson County, Illinois · 0.5 MI E of Ill 26 · Structure no. 089321800000000

Built
1980
45 years old
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
89 ft
3 main spans
Daily traffic
650
2024 count
Owner
County
County Highway Agency

About this bridge

East Lamm Road over Cranes Grove Creek is a prestressed concrete box beam or girders - multiple carrying East Lamm Road over Cranes Grove Creek in Stephenson County, Illinois. It was built in 1980, so it is 45 years old, younger 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 650 vehicles a day, roughly 11% of them trucks, projected to reach 631 by 2046. The structure is 89 ft (27.1 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesEast Lamm Road
CrossesCranes Grove Creek
Location0.5 MI E of Ill 26
RouteCounty Highway 0
CountyStephenson County
StateIllinois
Coordinates42.25879, -89.60097
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length89 ft (27.1 m)
Longest span29 ft (8.8 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2024)
Projected traffic631 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 East Lamm Road over Cranes Grove Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is East Lamm Road over Cranes Grove Creek 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 December 2024.

How much traffic does East Lamm Road over Cranes Grove Creek carry?

About 650 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is East Lamm Road over Cranes Grove Creek?

The structure is 89 ft (27.1 m) long with a longest span of 29 ft (8.8 m) and a deck 28 ft wide.

Who owns East Lamm Road over Cranes Grove Creek?

It is owned by the County Highway Agency.