US Bridges

Freeport RD over Buffalo Creek

Fair

Ogle County, Illinois · 2.5 MI SW Polo · Structure no. 071302400000000

Built
1956
69 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete Continuous
Length
111 ft
3 main spans
Daily traffic
1,750
2022 count
Owner
County
County Highway Agency

About this bridge

Freeport RD over Buffalo Creek is a concrete continuous slab carrying Freeport RD over Buffalo Creek in Ogle County, Illinois. It was built in 1956, so it is 69 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 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 1,750 vehicles a day, roughly 7% of them trucks, projected to reach 1,924 by 2046. The structure is 111 ft (33.8 m) long and 28 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesFreeport RD
CrossesBuffalo Creek
Location2.5 MI SW Polo
RouteCounty Highway 0
CountyOgle County
StateIllinois
Coordinates41.95982, -89.62846
Functional classRural Major Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating28.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length111 ft (33.8 m)
Longest span42 ft (12.8 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,750 (2022)
Projected traffic1,924 by 2046
Trucks7%
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 Freeport RD over Buffalo Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is Freeport RD over Buffalo 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 August 2023.

How much traffic does Freeport RD over Buffalo Creek carry?

About 1,750 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Freeport RD over Buffalo Creek?

The structure is 111 ft (33.8 m) long with a longest span of 42 ft (12.8 m) and a deck 28 ft wide.

Who owns Freeport RD over Buffalo Creek?

It is owned by the County Highway Agency.