US Bridges

Crystal Lake LN over Drainage Ditch

Fair

Montgomery County, Texas · 0.1 MI SE of Grogans Mill · Structure no. 121700AA0686123

Built
1975
50 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
30 ft
3 main spans
Daily traffic
2,130
2013 count
Owner
County
County Highway Agency

About this bridge

Crystal Lake LN over Drainage Ditch is a concrete culvert carrying Crystal Lake LN over Drainage Ditch in Montgomery County, Texas. It was built in 1975, so it is 50 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,130 vehicles a day, projected to reach 2,430 by 2033. The structure is 30 ft (9.1 m) long and 49 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesCrystal Lake LN
CrossesDrainage Ditch
Location0.1 MI SE of Grogans Mill
RouteCounty Highway 0
CountyMontgomery County
StateTexas
Coordinates30.13528, -95.46149
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span8 ft (2.4 m)
Deck width49 ft (14.9 m)
Roadway width48 ft (14.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,130 (2013)
Projected traffic2,430 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Crystal Lake LN over Drainage Ditch built?

It was built in 1975, making it 50 years old in 2025.

What condition is Crystal Lake LN over Drainage Ditch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2023.

How much traffic does Crystal Lake LN over Drainage Ditch carry?

About 2,130 vehicles per day (2013 count).

How long is Crystal Lake LN over Drainage Ditch?

The structure is 30 ft (9.1 m) long with a longest span of 8 ft (2.4 m) and a deck 49 ft wide.

Who owns Crystal Lake LN over Drainage Ditch?

It is owned by the County Highway Agency.