FHWA NBI 2024 Inspection record Public-domain dataset

CASS CITY ROAD

Carrying CASS CITY ROAD over SOUTHGATE DRAIN

SEC 19-30 AKRON TWP, Tuscola, Michigan

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
17 t Inventory load rating

Bridge Snapshot: CASS CITY ROAD

The CASS CITY ROAD bridge in Tuscola, Michigan carries CASS CITY ROAD over SOUTHGATE DRAIN. It was built in 1945, making it 81 years old today. The structure is built primarily of steel and spans 1 section, stretching 7.3 meters (24 feet) end to end. Daily traffic averages 77 vehicles, placing it in the lower-traffic tier of Michigan bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 5/9, superstructure at 4/9, substructure at 4/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order. Its NBI inventory load rating is 16.7 metric tons.

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

How CASS CITY ROAD compares

▼ 25.0
Load rating vs Michigan average (41.7 t)
Bottom 7%
Lower load rating than 93% of Michigan bridges
29
Bridges in Tuscola · 2 in Poor condition
CASS CITY ROAD 16.7 t
Michigan average 41.7 t

Live comparison across Michigan.

Historical Sufficiency Rating

PlainBridge-computed
48.7 / 100 - historical 20–49.9 band
Structural adequacy /55
9.8
Serviceability /30
27.0
Essentiality /15
15.0
Special reductions
−3.0

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 How the historical reference is calculated.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
5/9
Fair (5–6)
Superstructure
4/9
Poor (1–4)
Substructure
4/9
Poor (1–4)
Inventory Load Rating
16.7 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1945
Material
Steel
Number of Spans
1
Structure Length
7.3 m (24 ft)
Deck Width
7.5 m (25 ft)
Owner
County Highway Agency
Avg Daily Traffic
77 vehicles/day
Structure Number
000000000010537

Condition Analysis

  • The deck (driving surface) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
  • The superstructure (beams and supports above the deck) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
  • The substructure (piers and abutments) is in poor condition (4/9), showing advanced deterioration that may require priority repair.

How to read this record

CASS CITY ROAD 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 CASS CITY ROAD against other structures in Tuscola and across Michigan. Michigan 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 CASS CITY ROAD?

CASS CITY ROAD in Tuscola, Michigan has a deck rating of 5/9, superstructure rating of 4/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.

How often is CASS CITY ROAD inspected?

CASS CITY ROAD'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 77 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. CASS CITY ROAD 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 CASS CITY ROAD?

CASS CITY ROAD has an NBI inventory load rating of 16.7 metric tons.

Who is responsible for maintaining CASS CITY ROAD?

CASS CITY ROAD is owned and maintained by County Highway Agency.

How old is CASS CITY ROAD and does age affect safety?

CASS CITY ROAD was built in 1945, making it 81 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.