US Bridges

Grogans Mill RD SB over Drainage Ditch

Good

Montgomery County, Texas · 0.25 MI SW of Lke Wdlands · Structure no. 121700AA0681005

Built
1999
26 years old
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
92 ft
1 main span
Daily traffic
6,055
2020 count
Owner
County
County Highway Agency

About this bridge

Grogans Mill RD SB over Drainage Ditch is a prestressed concrete box beam or girders - multiple carrying Grogans Mill RD SB over Drainage Ditch in Montgomery County, Texas. It was built in 1999, so it is 26 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,055 vehicles a day, projected to reach 6,000 by 2032. The structure is 92 ft (28 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesGrogans Mill RD SB
CrossesDrainage Ditch
Location0.25 MI SW of Lke Wdlands
RouteCounty Highway 0
CountyMontgomery County
StateTexas
Coordinates30.1621, -95.46886
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+1 approach)
Design loadHS 20
Structure length92 ft (28 m)
Longest span66 ft (20.1 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,055 (2020)
Projected traffic6,000 by 2032
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$6,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Grogans Mill RD SB over Drainage Ditch built?

It was built in 1999, making it 26 years old in 2025.

What condition is Grogans Mill RD SB over Drainage Ditch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does Grogans Mill RD SB over Drainage Ditch carry?

About 6,055 vehicles per day (2020 count).

How long is Grogans Mill RD SB over Drainage Ditch?

The structure is 92 ft (28 m) long with a longest span of 66 ft (20.1 m) and a deck 28 ft wide.

Who owns Grogans Mill RD SB over Drainage Ditch?

It is owned by the County Highway Agency.