C-1809/DEER RUN RD
Carrying C-1809/DEER RUN RD over RUMPHS HILL CREEK
2 MI NW OF SUMMERVILLE, Dorchester, South Carolina
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
C-1809/DEER RUN RD in Dorchester, South Carolina sits above 49% of rated South Carolina bridges on inventory load rating (29 t), while its 1985 build year is earlier than 26% of Dorchester's recorded-year cohort (198 bridges).
C-1809/DEER RUN RD in Dorchester, South Carolina is rated Poor 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 4. The lowest applicable rating sets the federal condition category, so this Poor 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 SC:000000000009652
LATE-CENTURY · CONCRETE · MULTI-SPAN · SUB-LED · LOCAL-ADT · STANDARD-LOAD · CAT-POOR
- LATE-CENTURY 1980–1999
- CONCRETE Concrete
- MULTI-SPAN 3 spans
- SUB-LED Substructure-led
- LOCAL-ADT Local ADT
- STANDARD-LOAD Standard load
- CAT-POOR Poor
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: C-1809/DEER RUN RD
The C-1809/DEER RUN RD bridge in Dorchester, South Carolina carries C-1809/DEER RUN RD over RUMPHS HILL CREEK. It was built in 1985, making it 41 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 13.7 meters (45 feet) end to end. Daily traffic averages 225 vehicles, placing it in the lower-traffic tier of South Carolina bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 6/9, substructure at 4/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules.
How C-1809/DEER RUN RD compares
Age against the county: built in 1985, earlier than 52 of Dorchester's 198 bridges with a recorded construction year (26%), against a county median build year of 1972. This is one of the newer structures in its county.
Live comparison across South Carolina bridges with a recorded inventory load rating (9,483 of 9,490 rated).
C-1809/DEER RUN RD vs every rated South Carolina bridge
Inventory load rating (metric tons), FHWA NBI, this state
29 Top 51% higher than 49% of 9,483 bridges
rated South Carolina 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.
Dorchester inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 198 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
- Concrete
- Number of Spans
- 3
- Structure Length
- 13.7 m (45 ft)
- Deck Width
- 10.1 m (33 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 225 vehicles/day
- Structure Number
- 000000000009652
Condition Analysis
- • The deck (driving surface) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
- • The superstructure (beams and supports above the deck) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
- • The substructure (piers and abutments) is in poor condition (4/9), showing advanced deterioration on the inspecting agency's 0-9 scale.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
C-1809/DEER RUN RD 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 C-1809/DEER RUN RD against other structures in Dorchester and across South Carolina. South Carolina 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 C-1809/DEER RUN RD?
C-1809/DEER RUN RD in Dorchester, South Carolina has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is C-1809/DEER RUN RD inspected?
C-1809/DEER RUN 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 225 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. C-1809/DEER RUN RD 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 C-1809/DEER RUN RD?
C-1809/DEER RUN RD has an NBI inventory load rating of 28.8 metric tons.
Who is responsible for maintaining C-1809/DEER RUN RD?
C-1809/DEER RUN RD is owned and maintained by County Highway Agency.
How old is C-1809/DEER RUN RD and does age affect safety?
C-1809/DEER RUN 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.