US Bridges

US 59 Nb/Ih 610 EB over US 59 NB FR

Fair

Harris County, Texas · At US59/IH610 N Lp. · Structure no. 121020017711257

Built
1997
28 years old
Condition
Fair
inspected October 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
481 ft
5 main spans
Daily traffic
6,592
2021 count
Owner
State
State Highway Agency

About this bridge

US 59 Nb/Ih 610 EB over US 59 NB FR is a prestressed concrete stringer/multi-beam or girder carrying US 59 Nb/Ih 610 EB over US 59 NB FR in Harris County, Texas. It was built in 1997, so it is 28 years old, younger 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 6,592 vehicles a day, roughly 3% of them trucks, projected to reach 9,888 by 2041. The structure is 481 ft (146.6 m) long and 39 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesUS 59 Nb/Ih 610 EB
CrossesUS 59 NB FR
LocationAt US59/IH610 N Lp.
RouteU.S. Route 59
StateTexas
Coordinates29.80698, -95.33601
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length481 ft (146.6 m)
Longest span98 ft (29.9 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,592 (2021)
Projected traffic9,888 by 2041
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 59 Nb/Ih 610 EB over US 59 NB FR built?

It was built in 1997, making it 28 years old in 2025.

What condition is US 59 Nb/Ih 610 EB over US 59 NB FR 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 October 2022.

How much traffic does US 59 Nb/Ih 610 EB over US 59 NB FR carry?

About 6,592 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is US 59 Nb/Ih 610 EB over US 59 NB FR?

The structure is 481 ft (146.6 m) long with a longest span of 98 ft (29.9 m) and a deck 39 ft wide.

Who owns US 59 Nb/Ih 610 EB over US 59 NB FR?

It is owned by the State Highway Agency.