30TH STREET
Carrying 30TH STREET over WHITE RIVER
.5 MI E OF COLD SPRING RD, Marion, Indiana
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: 30TH STREET
The 30TH STREET bridge in Marion, Indiana carries 30TH STREET over WHITE RIVER. It was built in 1907, making it 119 years old today. It was last reconstructed in 1979, extending its service life. The structure is built primarily of concrete and spans 3 sections, stretching 103.3 meters (339 feet) end to end. Daily traffic averages 35,555 vehicles, placing it in the heavily-trafficked tier of Indiana bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show superstructure at 5/9, 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 28.8 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How 30TH STREET compares
Live comparison across Indiana.
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 How the historical reference is calculated.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
- 1907
- Last Reconstructed
- 1979
- Material
- Concrete
- Number of Spans
- 3
- Structure Length
- 103.3 m (339 ft)
- Deck Width
- 22.1 m (73 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 35,555 vehicles/day
- Structure Number
- 4900125
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The superstructure (beams and supports above the deck) rates fair at 5/9, minor deterioration that routine maintenance should address.
- • At 4/9, the substructure (piers and abutments) is in poor shape, with advanced wear flagged for priority repair.
How to read this record
30TH STREET 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 30TH STREET against other structures in Marion and across Indiana. Indiana 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 30TH STREET?
30TH STREET in Marion, Indiana, superstructure rating of 5/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is 30TH STREET inspected?
30TH STREET'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 35,555 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. 30TH STREET 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 30TH STREET?
30TH STREET has an NBI inventory load rating of 28.8 metric tons.
Who is responsible for maintaining 30TH STREET?
30TH STREET is owned and maintained by City/Municipal Highway Agency.
How old is 30TH STREET and does age affect safety?
30TH STREET was built in 1907, making it 119 years old and last reconstructed in 1979.
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.