US Bridges

IH 35 NB over Mann RD

Good

Webb County, Texas · 1.80 MI N of US 59 · Structure no. 222400001806083

Built
1962
63 years old, rebuilt 1997
Condition
Good
inspected November 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
164 ft
4 main spans
Daily traffic
37,540
2013 count
Owner
State
State Highway Agency

About this bridge

IH 35 NB over Mann RD is a prestressed concrete stringer/multi-beam or girder carrying IH 35 NB over Mann RD in Webb County, Texas. It was built in 1962 and reconstructed in 1997, so it is 63 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 37,540 vehicles a day, roughly 5% of them trucks, projected to reach 52,560 by 2033. The structure is 164 ft (50 m) long and 56 ft wide.

CarriesIH 35 NB
CrossesMann RD
Location1.80 MI N of US 59
RouteInterstate 35
StateTexas
Coordinates27.55652, -99.50373
Functional classUrban Principal Arterial - Interstate

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.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length164 ft (50 m)
Longest span41 ft (12.5 m)
Deck width56 ft (17.2 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,540 (2013)
Projected traffic52,560 by 2033
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 35 NB over Mann RD built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1997.

What condition is IH 35 NB over Mann RD 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 2022.

How much traffic does IH 35 NB over Mann RD carry?

About 37,540 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is IH 35 NB over Mann RD?

The structure is 164 ft (50 m) long with a longest span of 41 ft (12.5 m) and a deck 56 ft wide.

Who owns IH 35 NB over Mann RD?

It is owned by the State Highway Agency.