US 54 over Blue Creek
Pike County, Illinois · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 54 over Blue Creek in Pike County, Illinois, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1989, making it 36 years old at the 2025 inventory.
- It carries about 4,700 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 78 of the 332 inventoried bridges in Pike County rated good (23.5%); 34 (10.2%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (good), but component ratings moved: substructure 8 to 7.
- Its most recent inspection on record is dated August 2024, on a 48-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (39.66496, -90.77213)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 7 | Good condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 89 ft |
| Location | 3.4MI SW Griggsville |
| NBI structure number | 075013200000000 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2024 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in Pike County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-72 / US 36 over Miss R/bnrr/nsrr/st | 1999 | 16,500 | Poor |
| I-72 over Trib Blue Creek | 1988 | 9,900 | Good |
| I-72 over Drainage Ditch | 1988 | 9,410 | Good |
| I-72 over Drainage Ditch | 1986 | 9,400 | Fair |
| I-72 over Drainage Ditch | 1986 | 9,400 | Fair |
| I-72 / US 36 over Drainage Ditch | 1986 | 9,400 | Fair |
All bridges nearby: Pike County, IL bridge conditions · every bridge in Pike County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.