US Bridges

Towanda Ave over Southern Pacific RR

Fair

McLean County, Illinois · 2.4 MI Nnw BUS55 & 9 · Structure no. 057783000000000

Built
1994
31 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
156 ft
3 main spans
Daily traffic
15,800
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Towanda Ave over Southern Pacific RR is a steel continuous stringer/multi-beam or girder carrying Towanda Ave over Southern Pacific RR in McLean County, Illinois. It was built in 1994, so it is 31 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 15,800 vehicles a day, roughly 5% of them trucks, projected to reach 6,919 by 2046. The structure is 156 ft (47.7 m) long and 62 ft wide.

Location

Open in Google Maps
CarriesTowanda Ave
CrossesSouthern Pacific RR
Location2.4 MI Nnw BUS55 & 9
CountyMcLean County
StateIllinois
Coordinates40.52276, -88.96174
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 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 length156 ft (47.7 m)
Longest span60 ft (18.3 m)
Deck width62 ft (18.8 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,800 (2024)
Projected traffic6,919 by 2046
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Towanda Ave over Southern Pacific RR built?

It was built in 1994, making it 31 years old in 2025.

What condition is Towanda Ave over Southern Pacific RR 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 July 2023.

How much traffic does Towanda Ave over Southern Pacific RR carry?

About 15,800 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Towanda Ave over Southern Pacific RR?

The structure is 156 ft (47.7 m) long with a longest span of 60 ft (18.3 m) and a deck 62 ft wide.

Who owns Towanda Ave over Southern Pacific RR?

It is owned by the City or Municipal Highway Agency.