SH 105 over Alligator Crk

Fair Condition79 years old27,758 vehicles/day

Location

StateTexas
CountyMontgomery
Location0.2 Mi E Of IH 45
CarriesSH 105
CrossesAlligator Crk
Coordinates30.31388, -95.46916

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure7 (Good)
Substructure6 (Satisfactory)
Channel/Waterway6 (Satisfactory)
Scour Critical6 — Scour calculated, stable

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length100.1 ft (30.5 m)
Max Span20.0 ft (6.1 m)
Deck Width113.8 ft (34.7 m)
Deck Area1058.3 sq m
Main Spans5
Year Built1947 (reconstructed 1990)

Traffic

Avg Daily Traffic27,758 (2023)
Truck Traffic4%
Lanes On Bridge7

Inspection & Ownership

Last Inspection924
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Structure Number121700033803075

Nearby Bridges

Dallas ST NB over Pin Oak Branch 0.0 mi Fair IH 45 NB over SH 105 0.1 mi Good IH 45 SB over SH 105 0.2 mi Good Dallas ST SB over Pin Oak Branch 0.2 mi Good IH 45 Access Rds over Alligator Crk N.mc. 0.2 mi Fair IH 45 over Alligator Crk N1 Trib 0.3 mi Good IH 45 NB Exit Ramp over IH 45 NB Entrance Ramp F 0.4 mi Fair IH 45 NB over FM 2854 & Bnsf Rr 0.4 mi Good IH 45 SB over FM 2854 & Bnsf Rr 0.4 mi Good IH 45 Sbfr over FM 2854 & Bnsf Rr 0.4 mi Good