US Bridges

IH 610 SB over Ptra RR

Fair

Harris County, Texas · 2.00 MI S of IH 10 · Structure no. 121020027115328

Built
1970
55 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
223 ft
3 main spans
Daily traffic
84,191
2019 count
Owner
State
State Highway Agency

About this bridge

IH 610 SB over Ptra RR is a concrete continuous slab carrying IH 610 SB over Ptra RR 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 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 84,191 vehicles a day, roughly 8% of them trucks, projected to reach 92,110 by 2033. The structure is 223 ft (68 m) long and 81 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIH 610 SB
CrossesPtra RR
Location2.00 MI S of IH 10
RouteInterstate 610
CountyHarris County
StateTexas
Coordinates29.74613, -95.26499
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating39 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20
Structure length223 ft (68 m)
Longest span57 ft (17.4 m)
Deck width81 ft (24.6 m)
Roadway width78 ft (23.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic84,191 (2019)
Projected traffic92,110 by 2033
Trucks8%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 610 SB over Ptra RR built?

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

What condition is IH 610 SB over Ptra RR 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 2024.

How much traffic does IH 610 SB over Ptra RR carry?

About 84,191 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is IH 610 SB over Ptra RR?

The structure is 223 ft (68 m) long with a longest span of 57 ft (17.4 m) and a deck 81 ft wide.

Who owns IH 610 SB over Ptra RR?

It is owned by the State Highway Agency.