FHWA NBI 2024 Inspection record Public-domain dataset

S.R. 158

Carrying S.R. 158 over SEABURY CREEK

300' E. OF SCHILLINGER RD, Mobile, Alabama

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
77 t Inventory load rating

Bridge Snapshot: S.R. 158

The S.R. 158 bridge in Mobile, Alabama carries S.R. 158 over SEABURY CREEK. It was built in 2007, making it 19 years old today. The structure is built primarily of concrete and spans 4 sections, stretching 17.7 meters (58 feet) end to end. Daily traffic averages 15,163 vehicles, placing it in the heavily-trafficked tier of Alabama bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show culvert 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 77.3 metric tons.

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

How S.R. 158 compares

▲ 39.0
Load rating vs Alabama average (38.3 t)
Top 8%
Higher load rating than 92% of Alabama bridges
502
Bridges in Mobile · 12 in Poor condition
S.R. 158 77.3 t
Alabama average 38.3 t

Live comparison across Alabama.

Historical Sufficiency Rating

PlainBridge-computed
83.3 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
15.0
Essentiality /15
13.3
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 How the historical reference is calculated.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

Culvert
6/9
Fair (5–6)
Inventory Load Rating
77.3 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
2007
Material
Concrete
Number of Spans
4
Structure Length
17.7 m (58 ft)
Owner
State Highway Agency
Avg Daily Traffic
15,163 vehicles/day
Structure Number
018789

How to read this record

This page shows what the last federal inspection recorded, not whether S.R. 158 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 S.R. 158 against other structures in Mobile and across Alabama. Alabama 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 S.R. 158?

S.R. 158 in Mobile, Alabama on the FHWA's 0–9 scale.

How often is S.R. 158 inspected?

S.R. 158'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 15,163 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. S.R. 158 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 S.R. 158?

S.R. 158 has an NBI inventory load rating of 77.3 metric tons.

Who is responsible for maintaining S.R. 158?

S.R. 158 is owned and maintained by State Highway Agency.

How old is S.R. 158 and does age affect safety?

S.R. 158 was built in 2007, making it 19 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.