US Bridges

IH 45 NB over Tct RR

Fair

Galveston County, Texas · 1.3 MI NW of SH 6 · Structure no. 120850050004134

Built
1965
60 years old
Condition
Fair
inspected September 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
340 ft
3 main spans
Daily traffic
23,779
2018 count
Owner
State
State Highway Agency

About this bridge

IH 45 NB over Tct RR is a prestressed concrete stringer/multi-beam or girder carrying IH 45 NB over Tct RR in Galveston County, Texas. It was built in 1965, so it is 60 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 23,779 vehicles a day, roughly 4% of them trucks, projected to reach 31,830 by 2033. The structure is 340 ft (103.6 m) long and 59 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesIH 45 NB
CrossesTct RR
Location1.3 MI NW of SH 6
RouteInterstate 45
CountyGalveston County
StateTexas
Coordinates29.34348, -94.94959
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2022
Inspection intervalevery 48 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 rating48.9 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3 (+3 approach)
Design loadHS 20
Structure length340 ft (103.6 m)
Longest span70 ft (21.3 m)
Deck width59 ft (18.1 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,779 (2018)
Projected traffic31,830 by 2033
Trucks4%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.7 mi (6 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 45 NB over Tct RR built?

It was built in 1965, making it 60 years old in 2025.

What condition is IH 45 NB over Tct 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 September 2022.

How much traffic does IH 45 NB over Tct RR carry?

About 23,779 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is IH 45 NB over Tct RR?

The structure is 340 ft (103.6 m) long with a longest span of 70 ft (21.3 m) and a deck 59 ft wide.

Who owns IH 45 NB over Tct RR?

It is owned by the State Highway Agency.