US Bridges

IH 45 SB over SH 75

Fair

Walker County, Texas · 1.75 MI NW of SH 30 · Structure no. 172360067506204

Built
1959
66 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete Continuous
Length
130 ft
3 main spans
Daily traffic
16,365
2020 count
Owner
State
State Highway Agency

About this bridge

IH 45 SB over SH 75 is a concrete continuous slab carrying IH 45 SB over SH 75 in Walker County, Texas. It was built in 1959, so it is 66 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 16,365 vehicles a day, roughly 31% of them trucks, projected to reach 32,729 by 2040. The structure is 130 ft (39.6 m) long and 42 ft wide.

Location

Open in Google Maps
CarriesIH 45 SB
CrossesSH 75
Location1.75 MI NW of SH 30
RouteInterstate 45
CountyWalker County
StateTexas
Coordinates30.73669, -95.58962
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 inspectionJuly 2023
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 rating65 US tons
Inventory rating39 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span50 ft (15.2 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,365 (2020)
Projected traffic32,729 by 2040
Trucks31%
Lanes on structure2
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$13,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 45 SB over SH 75 built?

It was built in 1959, making it 66 years old in 2025.

What condition is IH 45 SB over SH 75 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 July 2023.

How much traffic does IH 45 SB over SH 75 carry?

About 16,365 vehicles per day (2020 count), of which roughly 31% are trucks.

How long is IH 45 SB over SH 75?

The structure is 130 ft (39.6 m) long with a longest span of 50 ft (15.2 m) and a deck 42 ft wide.

Who owns IH 45 SB over SH 75?

It is owned by the State Highway Agency.