US Bridges

So State Street over Geneseo Creek

Good

Henry County, Illinois · So Center of Geneseo · Structure no. 037600300000000

Built
1982
43 years old
Condition
Good
inspected October 2022
Type
Box Beam or Girders - Multiple
Concrete
Length
72 ft
1 main span
Daily traffic
3,050
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

So State Street over Geneseo Creek is a concrete box beam or girders - multiple carrying So State Street over Geneseo Creek in Henry County, Illinois. It was built in 1982, so it is 43 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 3,050 vehicles a day, roughly 2% of them trucks, projected to reach 3,294 by 2046. The structure is 72 ft (21.9 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSo State Street
CrossesGeneseo Creek
LocationSo Center of Geneseo
Coordinates41.43946, -90.15586
Functional classUrban Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2022
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length72 ft (21.9 m)
Longest span66 ft (20.1 m)
Deck width30 ft (9.2 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,050 (2020)
Projected traffic3,294 by 2046
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 So State Street over Geneseo Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is So State Street over Geneseo Creek 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 October 2022.

How much traffic does So State Street over Geneseo Creek carry?

About 3,050 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is So State Street over Geneseo Creek?

The structure is 72 ft (21.9 m) long with a longest span of 66 ft (20.1 m) and a deck 30 ft wide.

Who owns So State Street over Geneseo Creek?

It is owned by the City or Municipal Highway Agency.