US Bridges

Creston RD over I-39 & US 51

Fair

Ogle County, Illinois · 1.5 MI E of Rochelle · Structure no. 071006100000000

Built
1980
45 years old, rebuilt 2018
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
260 ft
2 main spans
Daily traffic
775
2022 count
Owner
State
State Highway Agency

About this bridge

Creston RD over I-39 & US 51 is a prestressed concrete continuous stringer/multi-beam or girder carrying Creston RD over I-39 & US 51 in Ogle County, Illinois. It was built in 1980 and reconstructed in 2018, 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 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 775 vehicles a day, roughly 21% of them trucks, projected to reach 832 by 2046. The structure is 260 ft (79.4 m) long and 30 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesCreston RD
CrossesI-39 & US 51
Location1.5 MI E of Rochelle
CountyOgle County
StateIllinois
Coordinates41.92, -89.02376
Functional classRural Minor 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.7 US tons
Inventory rating47.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length260 ft (79.4 m)
Longest span107 ft (32.5 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic775 (2022)
Projected traffic832 by 2046
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Creston RD over I-39 & US 51 built?

It was built in 1980, making it 45 years old in 2025. It was reconstructed in 2018.

What condition is Creston RD over I-39 & US 51 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 October 2023.

How much traffic does Creston RD over I-39 & US 51 carry?

About 775 vehicles per day (2022 count), of which roughly 21% are trucks.

How long is Creston RD over I-39 & US 51?

The structure is 260 ft (79.4 m) long with a longest span of 107 ft (32.5 m) and a deck 30 ft wide.

Who owns Creston RD over I-39 & US 51?

It is owned by the State Highway Agency.