US Bridges

Town Hall Road over Leaf River

Good

Ogle County, Illinois · 4.8 M SW Byron · Structure no. 071323700000000

Built
1980
45 years old
Condition
Good
inspected August 2021
Type
Slab
Concrete
Length
121 ft
3 main spans
Daily traffic
150
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Town Hall Road over Leaf River is a concrete slab carrying Town Hall Road over Leaf River in Ogle 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 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 150 vehicles a day, roughly 57% of them trucks, projected to reach 156 by 2046. The structure is 121 ft (36.9 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesTown Hall Road
CrossesLeaf River
Location4.8 M SW Byron
RouteCounty Highway 0
Coordinates42.09904, -89.34545
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length121 ft (36.9 m)
Longest span45 ft (13.7 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2022)
Projected traffic156 by 2046
Trucks57%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Town Hall Road over Leaf River built?

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

What condition is Town Hall Road over Leaf River 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 August 2021.

How much traffic does Town Hall Road over Leaf River carry?

About 150 vehicles per day (2022 count), of which roughly 57% are trucks.

How long is Town Hall Road over Leaf River?

The structure is 121 ft (36.9 m) long with a longest span of 45 ft (13.7 m) and a deck 27 ft wide.

Who owns Town Hall Road over Leaf River?

It is owned by the Town or Township Highway Agency.