Tr 128 (th-s47) over N Branch Crow Creek
Marshall County, Illinois · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Tr 128 (th-s47) over N Branch Crow Creek in Marshall County, Illinois, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1962, making it 63 years old at the 2025 inventory.
- It carries about 75 vehicles a day (traffic count year 2024).
- Its listed owner is a town or township highway agency.
- It is one of 19 of the 155 inventoried bridges in Marshall County rated poor (12.3%); 19 (12.3%) are rated poor.
- Its traffic status in the 2025 inventory is open, would be posted or closed except for temporary shoring or other temporary measures (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated April 2023, on a 24-month routine inspection cycle.
- 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 → (41.0, -89.19049)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 4 | 4 | Poor condition |
Bridge details
| Structure | Concrete channel beam |
| Length | about 69 ft |
| Location | T29n-r1w-3pm Sec 2 |
| NBI structure number | 062470200000000 |
| Condition class | Poor |
| Traffic status (item 41) | Open, would be posted or closed except for temporary shoring or other temporary measures |
| Last inspection (item 90) | April 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in Marshall County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-39/US 51 over Stream | 1991 | 16,500 | Fair |
| I-39/US 51(SB) over N Fk Sandy Creek | 1990 | 8,250 | Fair |
| I-39/US 51(NB) over N Fk Sandy Creek | 1990 | 8,250 | Fair |
| I-39/US 51(SB) over Sandy Creek | 1990 | 8,250 | Fair |
| I-39/US 51(NB) over Sandy Creek | 1990 | 8,250 | Fair |
| I-39/US 51(SB) over Tr 39 (frtg Rd West) | 1991 | 8,250 | Fair |
All bridges nearby: Marshall County, IL bridge conditions · every bridge in Marshall County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.