US Bridges

West Grove RD over Branch Leaf River

Fair

Ogle County, Illinois · 3.0 MI SE Forreston · Structure no. 071303400000000

Built
1962
63 years old, rebuilt 2003
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
39 ft
1 main span
Daily traffic
200
2022 count
Owner
County
County Highway Agency

About this bridge

West Grove RD over Branch Leaf River is a prestressed concrete box beam or girders - multiple carrying West Grove RD over Branch Leaf River in Ogle County, Illinois. It was built in 1962 and reconstructed in 2003, so it is 63 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 200 vehicles a day, roughly 23% of them trucks, projected to reach 260 by 2046. The structure is 39 ft (11.9 m) long and 30 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesWest Grove RD
CrossesBranch Leaf River
Location3.0 MI SE Forreston
RouteCounty Highway 0
Coordinates42.09915, -89.53183
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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span36 ft (11 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2022)
Projected traffic260 by 2046
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 West Grove RD over Branch Leaf River built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2003.

What condition is West Grove RD over Branch Leaf River 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 August 2023.

How much traffic does West Grove RD over Branch Leaf River carry?

About 200 vehicles per day (2022 count), of which roughly 23% are trucks.

How long is West Grove RD over Branch Leaf River?

The structure is 39 ft (11.9 m) long with a longest span of 36 ft (11 m) and a deck 30 ft wide.

Who owns West Grove RD over Branch Leaf River?

It is owned by the County Highway Agency.