US Bridges

Lake Road (tr 31) over Branch Rock Creek

Fair

Whiteside County, Illinois · 5 Mi. N. Morrison · Structure no. 098362000000000

Built
1994
31 years old
Condition
Fair
inspected September 2024
Type
Channel Beam
Concrete
Length
24 ft
1 main span
Daily traffic
75
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lake Road (tr 31) over Branch Rock Creek is a concrete channel beam carrying Lake Road (tr 31) over Branch Rock Creek in Whiteside County, Illinois. It was built in 1994, so it is 31 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 6 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 75 vehicles a day, roughly 13% of them trucks, projected to reach 76 by 2046. The structure is 24 ft (7.3 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesLake Road (tr 31)
CrossesBranch Rock Creek
Location5 Mi. N. Morrison
RouteCounty Highway 0
CountyWhiteside County
StateIllinois
Coordinates41.88994, -89.94449
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span21 ft (6.5 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2021)
Projected traffic76 by 2046
Trucks13%
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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Lake Road (tr 31) over Branch Rock Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is Lake Road (tr 31) over Branch Rock 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 September 2024.

How much traffic does Lake Road (tr 31) over Branch Rock Creek carry?

About 75 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is Lake Road (tr 31) over Branch Rock Creek?

The structure is 24 ft (7.3 m) long with a longest span of 21 ft (6.5 m) and a deck 26 ft wide.

Who owns Lake Road (tr 31) over Branch Rock Creek?

It is owned by the Town or Township Highway Agency.