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CR 406 over Thomas Creek

Grimes County, Texas · rated Good in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled

View this bridge on a map → (30.45853, -95.97369)

Component ratings

ComponentRating (2024)Rating (2025)FHWA scale meaning
Deck88Very good condition
Superstructure88Very good condition
Substructure88Very good condition

Bridge details

StructurePrestressed concrete slab
Lengthabout 120 ft
Location0.55 Mi S of FM 1774
NBI structure number170940AA0192101
Condition classGood
Traffic status (item 41)Open, no restriction
Last inspection (item 90)December 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 Texas department of transportation.

Busiest bridges in Grimes County

BridgeBuiltVehicles/dayCondition
SH 6 over Drain197027,241Good
SH 6 over Drain197027,241Good
SH 6 over Sylvia Creek197025,973Fair
SH 6 over Cedar Creek197025,973Good
SH 6 over Sandy Creek197022,090Good
SH 6 SB over SH 90197115,528Good

All bridges nearby: Grimes County, TX bridge conditions · every bridge in Grimes County · Texas bridges.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.