US Bridges

Mirror Lake RD over Seals Gully

GoodPosted for load

Harris County, Texas · 0.40 MI S of Louetta RD · Structure no. 121020AA2034001

Built
1993
32 years old
Condition
Good
inspected September 2023
Type
Other
Prestressed Concrete
Length
96 ft
3 main spans
Daily traffic
1,230
2013 count
Owner
County
County Highway Agency

About this bridge

Mirror Lake RD over Seals Gully is a prestressed concrete other carrying Mirror Lake RD over Seals Gully in Harris County, Texas. It was built in 1993, so it is 32 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. Its operating status is: posted for load restriction.

It carries about 1,230 vehicles a day, projected to reach 1,500 by 2033. The structure is 96 ft (29.3 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesMirror Lake RD
CrossesSeals Gully
Location0.40 MI S of Louetta RD
RouteCounty Highway 0
CountyHarris County
StateTexas
Coordinates30.04744, -95.4639
Functional classUrban Local

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 protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour evaluation has not been made
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 typeOther
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length96 ft (29.3 m)
Longest span32 ft (9.8 m)
Deck width37 ft (11.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,230 (2013)
Projected traffic1,500 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mirror Lake RD over Seals Gully built?

It was built in 1993, making it 32 years old in 2025.

What condition is Mirror Lake RD over Seals Gully 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 September 2023.

How much traffic does Mirror Lake RD over Seals Gully carry?

About 1,230 vehicles per day (2013 count).

How long is Mirror Lake RD over Seals Gully?

The structure is 96 ft (29.3 m) long with a longest span of 32 ft (9.8 m) and a deck 37 ft wide.

Who owns Mirror Lake RD over Seals Gully?

It is owned by the County Highway Agency.