US Bridges

North Alley over Bn RR (078457M)

Good

Fulton County, Illinois · SW-29-T4NR1E · Structure no. 029993200000000

Built
2007
18 years old
Condition
Good
inspected April 2020
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
149 ft
3 main spans
Daily traffic
100
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

North Alley over Bn RR (078457M) is a steel continuous stringer/multi-beam or girder carrying North Alley over Bn RR (078457M) in Fulton County, Illinois. It was built in 2007, so it is 18 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 100 vehicles a day, roughly 19% of them trucks, projected to reach 101 by 2046. The structure is 149 ft (45.3 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNorth Alley
CrossesBn RR (078457M)
LocationSW-29-T4NR1E
RouteCity Street 0
CountyFulton County
StateIllinois
Coordinates40.29822, -90.42393
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2020
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length149 ft (45.3 m)
Longest span55 ft (16.8 m)
Deck width38 ft (11.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2020)
Projected traffic101 by 2046
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
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 North Alley over Bn RR (078457M) built?

It was built in 2007, making it 18 years old in 2025.

What condition is North Alley over Bn RR (078457M) 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 April 2020.

How much traffic does North Alley over Bn RR (078457M) carry?

About 100 vehicles per day (2020 count), of which roughly 19% are trucks.

How long is North Alley over Bn RR (078457M)?

The structure is 149 ft (45.3 m) long with a longest span of 55 ft (16.8 m) and a deck 38 ft wide.

Who owns North Alley over Bn RR (078457M)?

It is owned by the City or Municipal Highway Agency.