US Bridges

Diamondhead Blvd over Gum Gully

FairPosted for load

Harris County, Texas · 1.3 MI W of FM 2100 · Structure no. 121020AA6020001

Built
1970
55 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
198 ft
3 main spans
Daily traffic
6,584
2022 count
Owner
County
County Highway Agency

About this bridge

Diamondhead Blvd over Gum Gully is a prestressed concrete box beam or girders - multiple carrying Diamondhead Blvd over Gum Gully in Harris County, Texas. It was built in 1970, so it is 55 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 6,584 vehicles a day, roughly 3% of them trucks, projected to reach 9,218 by 2042. The structure is 198 ft (60.4 m) long and 34 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesDiamondhead Blvd
CrossesGum Gully
Location1.3 MI W of FM 2100
RouteCounty Highway 0
CountyHarris County
StateTexas
Coordinates29.91099, -95.09045
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
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 typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length198 ft (60.4 m)
Longest span66 ft (20.1 m)
Deck width34 ft (10.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,584 (2022)
Projected traffic9,218 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$13,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Diamondhead Blvd over Gum Gully built?

It was built in 1970, making it 55 years old in 2025.

What condition is Diamondhead Blvd over Gum Gully 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 September 2023.

How much traffic does Diamondhead Blvd over Gum Gully carry?

About 6,584 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Diamondhead Blvd over Gum Gully?

The structure is 198 ft (60.4 m) long with a longest span of 66 ft (20.1 m) and a deck 34 ft wide.

Who owns Diamondhead Blvd over Gum Gully?

It is owned by the County Highway Agency.