TULLOCK CR RD
Carrying TULLOCK CR RD over TULLOCK CREEK 030
20M NE HARDIN, Big Horn, Montana
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
TULLOCK CR RD in Big Horn, Montana sits above 9% of rated Montana bridges on inventory load rating (17 t), while its 1985 build year is earlier than 25% of Big Horn's recorded-year cohort (135 bridges).
TULLOCK CR RD in Big Horn, Montana is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1985, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 7. The lowest applicable rating sets the federal condition category, so this Good result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure MT:L02002012+06001
LATE-CENTURY · PRESTRESS · SINGLE-SPAN · TIED-CTRL · TRACE-ADT · LIGHT-LOAD · CAT-GOOD
- LATE-CENTURY 1980–1999
- PRESTRESS Prestressed concrete
- SINGLE-SPAN Single span
- TIED-CTRL Tied control
- TRACE-ADT Trace ADT
- LIGHT-LOAD Light load
- CAT-GOOD Good
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: TULLOCK CR RD
The TULLOCK CR RD bridge in Big Horn, Montana carries TULLOCK CR RD over TULLOCK CREEK 030. It was built in 1985, making it 41 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 21.9 meters (72 feet) end to end. Daily traffic averages 35 vehicles, placing it in the lower-traffic tier of Montana bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. All reported major components score above the Poor range.
How TULLOCK CR RD compares
Age against the county: built in 1985, earlier than 34 of Big Horn's 135 bridges with a recorded construction year (25%), against a county median build year of 1980. This is one of the newer structures in its county.
Live comparison across Montana bridges with a recorded inventory load rating (5,144 of 5,224 rated).
TULLOCK CR RD vs every rated Montana bridge
Inventory load rating (metric tons), FHWA NBI, this state
17 Top 91% higher than 9% of 5,144 bridges
rated Montana bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Big Horn inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 135 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1985
- Material
- Prestressed Concrete
- Number of Spans
- 1
- Structure Length
- 21.9 m (72 ft)
- Deck Width
- 6.0 m (20 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 35 vehicles/day
- Structure Number
- L02002012+06001
Condition Analysis
- • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
- • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
- • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether TULLOCK CR RD 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 TULLOCK CR RD against other structures in Big Horn and across Montana. Montana 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 TULLOCK CR RD?
TULLOCK CR RD in Big Horn, Montana has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is TULLOCK CR RD inspected?
TULLOCK CR RD'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 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. TULLOCK CR RD is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for TULLOCK CR RD?
TULLOCK CR RD has an NBI inventory load rating of 17.2 metric tons.
Who is responsible for maintaining TULLOCK CR RD?
TULLOCK CR RD is owned and maintained by County Highway Agency.
How old is TULLOCK CR RD and does age affect safety?
TULLOCK CR RD was built in 1985, making it 41 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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.