FHWA NBI 2024 Inspection record Public-domain dataset

HARRISON ST

Carrying HARRISON ST over ADDISON CR

0.5 MI E US45, Cook, Illinois

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
23 t Inventory load rating

Bridge Snapshot: HARRISON ST

The HARRISON ST bridge in Cook, Illinois carries HARRISON ST over ADDISON CR. It was built in 1952, making it 74 years old today. The structure is built primarily of concrete continuous and spans 3 sections, stretching 33.2 meters (109 feet) end to end. Daily traffic averages 1,500 vehicles, placing it in the moderately-trafficked tier of Illinois bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show a deck rating of 4/9, superstructure at 4/9, substructure at 6/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 22.7 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How HARRISON ST compares

▼ 11.9
Load rating vs Illinois average (34.6 t)
Bottom 8%
Lower load rating than 92% of Illinois bridges
2,185
Bridges in Cook · 144 in Poor condition
HARRISON ST 22.7 t
Illinois average 34.6 t

Live comparison across Illinois.

Historical Sufficiency Rating

PlainBridge-computed
46.3 / 100 - historical 20–49.9 band
Structural adequacy /55
20.2
Serviceability /30
11.1
Essentiality /15
15.0
Special reductions
0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Deck
4/9
Poor (1–4)
Superstructure
4/9
Poor (1–4)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
22.7 t
NBI inventory level (metric tons)
Overall Condition
Poor

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
1952
Material
Concrete Continuous
Number of Spans
3
Structure Length
33.2 m (109 ft)
Deck Width
10.5 m (34 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
1,500 vehicles/day
Structure Number
016323000000000

Condition Analysis

  • At 4/9, the deck (driving surface) is in poor shape, with advanced wear flagged for priority repair.
  • The superstructure (beams and supports above the deck) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
  • The substructure (piers and abutments) is in fair condition (6/9), with minor deterioration that may require routine maintenance.

How to read this record

HARRISON ST is in the federal Poor condition category. That is a component-based result, not a closure order.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
  • Compare HARRISON ST against other structures in Cook and across Illinois. Illinois bridges
  • Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge

Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.

Frequently Asked Questions

What do the condition ratings mean for HARRISON ST?

HARRISON ST in Cook, Illinois has a deck rating of 4/9, superstructure rating of 4/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is HARRISON ST inspected?

HARRISON ST's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 1,500 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. HARRISON ST is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for HARRISON ST?

HARRISON ST has an NBI inventory load rating of 22.7 metric tons.

Who is responsible for maintaining HARRISON ST?

HARRISON ST is owned and maintained by City/Municipal Highway Agency.

How old is HARRISON ST and does age affect safety?

HARRISON ST was built in 1952, making it 74 years old.

Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.