US Bridges

NB LN Inter Br over Rio Grande River

Good

Cameron County, Texas · 225 from Elizabeth ST · Structure no. 210310C00804002

Built
1969
56 years old
Condition
Good
inspected November 2023
Type
Other
Prestressed Concrete Continuous
Length
477 ft
4 main spans
Daily traffic
6,900
2010 count
Owner
County
County Highway Agency

About this bridge

NB LN Inter Br over Rio Grande River is a prestressed concrete continuous other carrying NB LN Inter Br over Rio Grande River in Cameron County, Texas. It was built in 1969, so it is 56 years old, older 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 6,900 vehicles a day, projected to reach 21,250 by 2029. The structure is 477 ft (145.4 m) long and 36 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNB LN Inter Br
CrossesRio Grande River
Location225 from Elizabeth ST
CountyCameron County
StateTexas
Coordinates25.89882, -97.49727
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
Deck8 Very GoodNo problems noted.
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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating48.9 US tons
Inventory rating36 US tons

Structure

Structure typeOther
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4 (+1 approach)
Design loadHS 20
Structure length477 ft (145.4 m)
Longest span106 ft (32.3 m)
Deck width36 ft (11 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,900 (2010)
Projected traffic21,250 by 2029
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a toll road
National Highway SystemYes

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$30,000
NavigationNo navigation control on waterway

Frequently asked questions

When was NB LN Inter Br over Rio Grande River built?

It was built in 1969, making it 56 years old in 2025.

What condition is NB LN Inter Br over Rio Grande River 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 NB LN Inter Br over Rio Grande River carry?

About 6,900 vehicles per day (2010 count).

How long is NB LN Inter Br over Rio Grande River?

The structure is 477 ft (145.4 m) long with a longest span of 106 ft (32.3 m) and a deck 36 ft wide.

Who owns NB LN Inter Br over Rio Grande River?

It is owned by the County Highway Agency.