US Bridges

Howison RD over Br Little Rock Creek

Fair

DeKalb County, Illinois · 1120N 1200E · Structure no. 019531100000000

Built
1954
71 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
26 ft
1 main span
Daily traffic
275
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Howison RD over Br Little Rock Creek is a concrete slab carrying Howison RD over Br Little Rock Creek in DeKalb County, Illinois. It was built in 1954, so it is 71 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 275 vehicles a day, roughly 5% of them trucks, projected to reach 308 by 2046. The structure is 26 ft (7.9 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesHowison RD
CrossesBr Little Rock Creek
Location1120N 1200E
RouteCounty Highway 0
CountyDeKalb County
StateIllinois
Coordinates41.79378, -88.71517
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 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 rating47.2 US tons
Inventory rating28.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length26 ft (7.9 m)
Longest span23 ft (7 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic275 (2021)
Projected traffic308 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Howison RD over Br Little Rock Creek built?

It was built in 1954, making it 71 years old in 2025.

What condition is Howison RD over Br Little 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 March 2024.

How much traffic does Howison RD over Br Little Rock Creek carry?

About 275 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Howison RD over Br Little Rock Creek?

The structure is 26 ft (7.9 m) long with a longest span of 23 ft (7 m) and a deck 29 ft wide.

Who owns Howison RD over Br Little Rock Creek?

It is owned by the Town or Township Highway Agency.