T-574 Marsh Road over over Conneaut Outlet
Crawford County, Pennsylvania · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- T-574 Marsh Road over over Conneaut Outlet in Crawford County, Pennsylvania, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1890 and reconstructed in 2016, making it 135 years old at the 2025 inventory.
- It carries about 250 vehicles a day (traffic count year 2024).
- Its listed owner is the county highway agency.
- It is one of 71 of the 401 inventoried bridges in Crawford County rated poor (17.7%); 71 (17.7%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- It was rated fair in the 2024 inventory and is now poor (deck 5 to 4, superstructure 5 to 4).
- Its most recent inspection on record is dated April 2024, on a 24-month routine inspection cycle.
- It has fracture-critical members (NBI item 92A): steel tension members without a redundant load path, which get their own scheduled inspections.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (41.54094, -80.12834)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 4 | Poor condition |
| Superstructure | 5 | 4 | Poor condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Steel through truss |
| Length | about 74 ft |
| Location | .6 Mi.n.of SR-0285 |
| NBI structure number | 000000000013434 |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | April 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 4: foundations stable, field review says exposed foundations need protection |
| Fracture critical (item 92A) | Yes |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Pennsylvania department of transportation.
Busiest bridges in Crawford County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 6 Grand Army Hy over over Van Horne Creek | 1971 | 20,457 | Fair |
| SR 6 Smock Bridge over over Wnyp/park Ave/rd/ck | 1953 | 19,051 | Fair |
| SR 79 Nb/sb over over Rock Creek | 1965 | 12,950 | Fair |
| SR 6 Grand Army Hy over over Conneaut Lake Outlt | 1959 | 10,871 | Good |
| SR 6 Grand Army Hy over over Watson Run | 1939 | 10,524 | Poor |
| SR 6 Grand Army Hy over Watson Run | 2016 | 10,524 | Good |
All bridges nearby: Crawford County, PA bridge conditions · every bridge in Crawford County · Pennsylvania bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.