STH 32 NB-PROSPECT
Carrying STH 32 NB-PROSPECT over ABANDONED RR
1.6M N JCT USH 18 TO W, Milwaukee, Wisconsin
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: STH 32 NB-PROSPECT
The STH 32 NB-PROSPECT bridge in Milwaukee, Wisconsin carries STH 32 NB-PROSPECT over ABANDONED RR. It was built in 1957, making it 69 years old today. It was last reconstructed in 2008, extending its service life. The structure is built primarily of steel and spans 1 section, stretching 32.3 meters (106 feet) end to end. Daily traffic averages 9,593 vehicles, placing it in the moderately-trafficked tier of Wisconsin bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 37.3 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How STH 32 NB-PROSPECT compares
Live comparison across Wisconsin.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1957
- Last Reconstructed
- 2008
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 32.3 m (106 ft)
- Deck Width
- 19.5 m (64 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 9,593 vehicles/day
- Structure Number
- B40002900000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
- • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
- • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.
How to read this record
This page shows what the last federal inspection recorded, not whether STH 32 NB-PROSPECT is safe to cross today. Here is how to use it.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
- Compare STH 32 NB-PROSPECT against other structures in Milwaukee and across Wisconsin. Wisconsin 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 STH 32 NB-PROSPECT?
STH 32 NB-PROSPECT in Milwaukee, Wisconsin has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is STH 32 NB-PROSPECT inspected?
STH 32 NB-PROSPECT'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 9,593 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. STH 32 NB-PROSPECT is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for STH 32 NB-PROSPECT?
STH 32 NB-PROSPECT has an NBI inventory load rating of 37.3 metric tons.
Who is responsible for maintaining STH 32 NB-PROSPECT?
STH 32 NB-PROSPECT is owned and maintained by City/Municipal Highway Agency.
How old is STH 32 NB-PROSPECT and does age affect safety?
STH 32 NB-PROSPECT was built in 1957, making it 69 years old and last reconstructed in 2008.
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.
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.