US Bridges

Flagg RD over Kyte River

Good

Ogle County, Illinois · 4.5 MI W Rochelle · Structure no. 071300600000000

Built
1955
70 years old, rebuilt 2001
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
121 ft
3 main spans
Daily traffic
1,950
2022 count
Owner
County
County Highway Agency

About this bridge

Flagg RD over Kyte River is a steel continuous stringer/multi-beam or girder carrying Flagg RD over Kyte River in Ogle County, Illinois. It was built in 1955 and reconstructed in 2001, so it is 70 years old, older 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 1,950 vehicles a day, roughly 6% of them trucks, projected to reach 2,340 by 2046. The structure is 121 ft (36.8 m) long and 30 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesFlagg RD
CrossesKyte River
Location4.5 MI W Rochelle
RouteCounty Highway 0
Coordinates41.93725, -89.15673
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating59.3 US tons
Inventory rating32.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length121 ft (36.8 m)
Longest span44 ft (13.3 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,950 (2022)
Projected traffic2,340 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 Flagg RD over Kyte River built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 2001.

What condition is Flagg RD over Kyte 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 June 2024.

How much traffic does Flagg RD over Kyte River carry?

About 1,950 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Flagg RD over Kyte River?

The structure is 121 ft (36.8 m) long with a longest span of 44 ft (13.3 m) and a deck 30 ft wide.

Who owns Flagg RD over Kyte River?

It is owned by the County Highway Agency.